The Treaty of San Germano

When Pope Gregory IX started what came to be called the War of the Keys, he thought he was secure because his target was the Holy Roman Emperor Frederick II of Sicily, who was finally off on Crusade.

Gregory particularly wanted to capture Sicily from Frederick's control, especially because Frederick had been abusing his power over the church there. Gregory's military leader was John of Brienne, Frederick's father-in-law, who had no particular reason to love Frederick.

Upon hearing of the problems, and that Gregory had invaded Campania in southwestern Italy (Frederick's territory) Frederick abandoned the Holy Land and sailed back home, landing at Brindisi (Italy's "heel") on 10 June 1229. He had his Crusader army, of course, and some of the residents of Campania were opposed to the pope's attempt to expand the Papal States, so joined his cause.

Gregory's attempt to gain control over Sicily was rebuffed by the Muslim population in the western part of the island: they did not want the head of the Christian church having political control over them. Likewise, he could not turn Germany against Frederick; although he was born in Italy (his mother was Constance, Queen of Sicily), his father was Holy Roman Emperor Henry VI, so Frederick was considered German through and through.

The approach of Frederick's forces toward Campania caused the papal forces to start to lose their nerve. In August 1229, Gregory renewed his excommunication of Frederick, along with some of his chief supporters. He was also making promises left and right to various towns about offering them privileges, remission of sins, and political autonomy if they would simply join him and become part of the Papal States, but few were interested. Based on Frederick's treaty in the East with al-Kamil, Gregory claimed that Frederick was working in alliance with Muslims, hoping to erode his support.

For his part, Frederick was sending messages to the heads of Europe, explaining his cause and requesting their support. By the end of October, John of Brienne had retreated back to papal territory, and Frederick's troops had re-taken any of the papal-invaded towns.

Rather than take the opportunity and excuse to invade the Papal States, Frederick stopped his army's advance and requested that negotiations take place. Negotiations led to the Treaty of San Germano, signed on 23 July 1230. Gregory gave permission for Cardinal Giovanna Colonna to absolve Frederick's excommunication. The final treaty was brokered by Leopold VI, Duke of Austria, whose seal is illustrated above.

Contemporary sources, analyzing the War of the Keys, discussed it in terms of the "doctrine of the two swords": the material sword and the spiritual sword. Gregory's letter to England referred specifically to exercising temporal power. This use by the pope of the material sword, since he failed to achieve his aims with the spiritual sword, was criticized by many. There are even competing troubadour poems on the topic.

What I really want to look at next, however, is John of Brienne's role in the war. For that, we have to understand the marriage to Frederick of John's daughter, Isabella of Jerusalem, who became Queen of Jerusalem at the age of 13, was married at 13 to a man she had yet to meet, and was dead by 16.

Constance of Sicily

Manfred of Sicily (1232 - 1266), the last King of Sicily from the Hohenstaufen dynasty, had one child with Beatrice of Savoy, their daughter Constance (c.1249 - 1302). (He had several children by a s second wife.)

Constance's governess was Bella d'Amici, an Italian noblewoman. When Constance was 13, she was married to the son of King James I of Aragon, Peter. Bella d'Amici went with her and was her chief lady-in-waiting. When Manfred was killed by Charles of Anjou in the Battle of Benevento, Constance inherited the title Queen of Sicily.

King James died on 27 July 1276, with Peter succeeding him. The coronation of Peter and Constance took place on 17 November of that year, in Saragossa.

Peter and Constance had several children. From 1282-1302 their children fought the War of the Sicilian Vespers, trying to reclaim the throne of Sicily as the heirs of Constance. At that point, the "Kingdom of Sicily" extended far beyond the island, encompassing the southern part of Italy below the Papal States.

Such a large area with its resources and alliances meant that not only Aragon, but Naples, France, and the papacy were involved, all having a stake of some kind. The final result was a division of the Kingdom of Sicily into the Kingdom of Trinacria: the island of Sicily itself, governed by the Aragonese heirs of Queen Constance, and the Kingdom of Naples: the southern half of Italy.

Constance died on 9 April 1302, not quite living to see her heirs rule Sicily, the war having concluded on 31 August of that year. She lived on, however, in the great Italian epic, the Divine Comedy by Dante Alighieri. Her father, Manfred, had been excommunicated multiple times because of opposition to the papacy. Can't III of the Purgatorio shows us those who died excommunicate, including Manfred. Manfred tells Dante that he confessed all his horrible sins before he died; this repentance saved him from Hell, but he was still denied Heaven for a time. He tells Dante that there is a chance to achieve Heaven sooner if those on Earth pray for him, and he asks Dante to tell his daughter that her prayers can help.

...which is as good a segue as any to introduce our next topic, Dante Alighieri, who did not write a work called the Divine Comedy. See you tomorrow.

Barbarossa!

Born about 1122-23, Frederick (Friedrich) was born in France to the Duke of Swabia. He grew up learning the noble arts of hunting and riding and martial activity, but not the less-necessary arts of reading and writing.

In 1147, as his father lay dying, Frederick decided to accompany his uncle, Conrad III (who was King of Germany) on the Second Crusade. Frederick's father was angry at his brother for taking Frederick away when soon the Duke's widow would need support. The Duke died in the first week of April, and (now Duke) Frederick departed on Crusade at the end of May.

A few months later, Frederick was "tested" by his uncle. A Crusader was robbed and killed in a monastery outside Adrianople in Turkey, and Conrad ordered Frederick to avenge the death. Frederick destroyed the monastery and killed the perpetrators. His military training served him well on Crusade, and he was noted for being victorious "before all others," even though the Crusade itself failed.

In 1152, Conrad died, and the only two people at his deathbed—Frederick and the bishop of Bamberg—agreed that he wished Frederick to be named king, rather than Conrad's own son (who was only six years old at the time). A few days after being crowned King of the Germans, Frederick was crowned "King of the Romans," a title used to by kings of Germany from 1002CE onward to denote they considered themselves Holy Roman Emperor. 

He made it his goal to truly restore the wide-reaching boundaries enjoyed by Charlemagne, and the first step was to unite all the various princes of territories in German lands, and then to extend his authority to Italy. After making concessions in Germany to get everyone on his side, he began a total of six expeditions to Italy, beginning with Sicily, under Norman control by King William I of Sicily. From 1154 until the 1170s, he managed to conquer parts of Italy, but stirred up a great deal of anti-German sentiment and rebellion. An alliance with Constantinople helped the Italian city-states in northern Italy to defeat Frederick, a shock to Europe. It was his time in Italy that gave him the nickname Barbarossa, which means "red beard" in Italian. This nickname became so entwined with his career that it was carried back to Germany, where he was referred to some times as Kaiser Rotbart, "Emperor Red Beard."

In 1187, the aging emperor received letters from the European rulers in some Crusader states in the East to come to their aid. Frederick declined to join this Third Crusade, and urged Philip II of France to go, but later changed his mind and chose to "take up the cross."

This change of heart regarding the Third Crusade involved the Archbishop of Cologne and the Jews of Strasbourg, which I will explain next time.

The Battle of Lewes

The remains of Lewes Castle

King John wasn't the only English monarch who had his barons turn against him (forcing him to sign the Magna Carta). Another constitutional crisis arose a mere 50 years later during the reign of Henry III.

Henry lived a lavish lifestyle that demanded lots of money, which he demanded from increased taxation. He also got involved in issues that the English barons felt were not necessary to England's interests. For instance, Henry "bought" the title of "King of Sicily" from Pope Innocent IV by funding a war with the rulers of Sicily at that time, the Hohenstaufens. Henry wanted the title for his second son, Edmund. When funding for the war ran out, and victory was no longer in sight, Innocent reneged on the deal and gave the title to Charles of Anjou.

The barons, led by Simon de Montfort, tried to control Henry with, among other things, the 1258 Provisions of Oxford, reducing his powers. Henry got a dispensation from the pope in 1261 that released him (in his eyes) from the Provisions, and the barons and the forces loyal to Henry started arming for civil war.

A turning point came on 14 May 1264, at the Battle of Lewes. Henry was ensconced in Lewes Castle in Sussex, but left it to attack de Montfort's forces. Part of Henry's army was under his command, and part under that of Prince Edward (later King Edward I). Edward's cavalry drove off the attackers, but Edward pursued them, leaving his father outnumbered by the remaining de Montfort men. Captured, Henry was forced to sign an agreement called the Mise* of Lewes, giving control of government over to Simon de Montfort.

Constitutional historians do not recognize de Montfort as a king, even though he was controlling the government for about a year. His support faded, and Prince Edward raised an army a year later and defeated de Montfort at the Battle of Evesham, returning power to Henry.

*"Mise" is a rarely used word from French meaning "settlement."

Controlling Sicily, et alia

The growing power and importance of Sicily in the Middle Ages was mentioned here. But the solution they found didn't quite last; controlling Sicily was an ongoing issue for many. Generations later a different pope faced the "problem of Sicily." That was Pope Nicholas IV.

Nicholas (born Girolamo Masci, 1227-1292) was a humble Franciscan friar before he was elected the first pope from the Order founded only 79 years earlier by Saint Francis.

In the four years that he was pope, he had few ambitions. Resolving the current Sicilian question was one. There were two men claiming control of Sicily, Charles II of Naples and James II of Aragon. Unfortunately for James (who was actually resident in Sicily), Charles promised to recognize the pope's suzerainty over Sicily—meaning that Sicily would be beholden to the papal state and offer it regular tribute. Charles, therefore, got the pope's blessing, and Nicholas brokered a treaty with King Philip IV of France and King Alfonso III of Aragon to expel James II from Sicily.

No sooner had the Pope completed this task than another concern reared its head: the kingdom of Acre in the Middle East fell to the Mamluks. Failing to get a Crusade started, Nicholas sent missionaries to the east to increase Christian conversions.

He also made some financial changes in the Vatican. One of them was to disburse among the cardinals one-half of the Vatican's income. As it turned out, the power this gave to the College of Cardinals would create problems for later popes. Nicholas also created a detailed system of evaluation and taxation for English and Welsh parishes. The records created for his Taxatio provide historians with a valuable look at the status of English and Welsh churches at the end of the 13th century.

He died peacefully on 4 April 1292, at the age of 64.  His death would trigger the difficulties that led to the story of the Pope Who Quit.

Sugar, Short & Sweet

In a few parts of the world today, children are gorging on their haul of candy from trick-or-treating last night. The makers of candy out-do themselves yearly in producing variations on sugar and chocolate and color and texture, et cetera. But there is hardly anything in children's sacks and plastic jack-o-lanterns today that does not contain sugar.

A medieval merchant weighs sugar for sale

It was soldiers of the Persian Emperor Darius who reported finding, near the Indus River in 510 BCE, reeds which produced honey without bees. Nothing was made of this discovery, but Alexander the Great in 327 BCE learned of it and spread the knowledge to the Mediterranean. By 95 CE, this substance was well-known to the point where the Periplus Maris Erythræi (Guidebook to the Red Sea) could say there is "Exported commonly ... honey of reeds which is called sakchar." Not only may this be the first recorded evidence of sugar cane, it is probably also the origin of the later term saccharine.

But let's skip a bit to the European Middle Ages. According to one scholar, the Muslim conquest of Sicily would have introduced sugar to the West:

"Practically all the distinguishing features of Sicilian husbandry were introduced by the Arabs: citrus, cotton, carob, mulberry, both the celso, or black and the white morrella-sugar cane, hemp, date palm, the list is almost endless." — The Barrier and the Bridge-Historic Sicily, Alfonso Lowe (1972)

When William II of Sicily (1155-1189) built the Benedictine Abbey of Monreale and made it the largest landowner in Sicily after the Crown, it became one of the largest manufacturers of processed sugar in Europe.

Sugar was wonderful, like honey before it. It could be used to sweeten food, make medicine more palatable, and produce new kinds of drinks. It also could add a decorative touch to food: either by adding sparkle to fruit dusted in sugar crystals, or by caramelizing to a lovely brown on cooked foods.

Still, sugar was not as common as everyone would have liked. In 1226, Henry III (1207-1272) had difficulty finding 3 whole pounds needed for a banquet. Before long, however, production and trade must have increased, because only a generation later, in 1259, Henry could have bought that pound of sugar for only 12 shillings (ginger was 18 shillings, and a pound of cumin was only 2).

To see a collection of recipes from the Middle Ages for sweets, many of which used sugar, see here.

Frederick II

Frederick II of Sicily (1194-1250) has crossed the path of this blog more than once, but has not yet been featured.

He declared the Edict of Salerno, separating physicians and pharmacists.
Frederick was interested in math and science, and was friendly to and supportive of Fibonacci.
He promised to go on the Fifth Crusade, mentioned here, but never participated; he was blamed for its failures by Christians all over Europe as well as Pope Honorius III (who had been Frederick's tutor while young).

From the time he was declared Holy Roman Emperor in 1220 until his death 30 years later, he was a tremendous influence on science and culture, but a difficulty for popes and religion—odd, considering he willingly took the title Holy Roman Emperor. Although Pope Innocent III was his guardian growing up, Frederick often said blasphemous things, supposedly mocking Moses and Jesus and Mohammed for being frauds. His public attitude toward religion was unusual for his era and position, and Dante's Inferno places him in the circle of hell reserved for heretics.

He was, however, also possessed of a rationalism that was unusual for his era. He hired Arabs/Muslims as soldiers and personal guards; he hired Jewish scholars to be at his court. He pointed out the unfairness of trials by ordeal, because the stronger man would always win regardless of guilt or innocence. He hired the mathematician and scholar Michael Scot (of whom Honorius III thought very highly) to, among other things, make new translations of Aristotle and Arabian works into Latin. Michael Scot's translation of Aristotle was done with the help of Hermannus Alemannus ("Herman the German").

He had three wives and several mistresses. His third wife was Isabella of England, the daughter of King John Lackland. It was a political marriage, taken on because marrying an English princess would make his political opponents lose support from England. Once Isabella arrived in Sicily, she was sent to live in seclusion in Padua with only two of her English retainers.

Although Frederick had a profound and positive impact on laws and science, his personal manner made him many enemies and detractors. The Hohenstaufen lineage, which had included Frederick Barbarossa, lost power after Frederick II's death.

The Edict of Salerno

Salerno, located on the lower "shin" of Italy's southwest coast, has been occupied continuously since pre-historic times, frequently changing hands due to the many wars in the peninsula. Despite the changing political landscape, however, at least one feature of Salerno rose to a prominence that it held for several centuries, through several political shifts.

We don't know precisely when the Schola Medica Salernitana (Medical School of Salerno) was founded, but at some point, the dispensary of a 9th century monastery became a focal point for medical study and earned the title of the first medical school in history. Because of the fame of the school, Salerno became known as the "Town of Hippocrates."

The School today.

One of its unique qualities for the time was that it not only was well-versed in the Greco-Roman traditions of Hippocrates, Galen, Dioscorides and others. Its proximity to North Africa and Sicily gave it access to Arabic learning (Sicily was under Arab control from 956 until 1072). In fact, it was the arrival in 1077 of the Tunisian Muslim merchant-turned-monk Constantinus Africanus that started a Golden Age at the school. He compiled the Liber Pantegni (Book of All Arts).  It was (as is typical for the time) largely a collection of the work of others, but it drew together Greek and Arabic medical knowledge in what is called the earliest surviving Western medical treatise [source].

Salerno produced other medical texts as well. A 12th century pair named Johannes and Matthaeus Plantearius wrote the Liber de Simplici Medicina (Book of Simple Medicine). Several books on gynecology and cosmetics were created by the most famous woman doctor of the time.

Salerno thrived, even after Holy Roman Emperor Frederick II declared the Edict of Salerno. The Modern Age would approve of the Edict: it created a legal separation between physicians and apothecaries. Physicians could no longer prescribe medicines that they themselves prepared and sold. The Edict also fixed prices to prevent overcharging the sick. Over time, this Edict was copied throughout Europe, and we have reason to be glad that similar regulations exist today.