Beghards were often older, working men who were not wealthy to begin with, or who found themselves in a situation in life where they might have difficulty supporting themselves. They owned no property and agreed that the money in the community would be kept together for community needs. Members shared a living space. (The illustration is of a former beguinage in a borough of Stuttgart.) They chose leaders to guide them.
The origin of the terms "Beguine" and "Beghard" are unknown. They likely have nothing to do with begging, and are supposed to come from the Flemish beghen, "to pray."
Synods in 1259, in 1261, and in 1282 produced laws limiting their growth. They were condemned strongly by the Council of Vienne in 1312, but Pope John XXII overrode the Council. What was so bad about Beguines and Beghards? Because they were not educated as clergy, their practices and beliefs could develop into ideas opposed to official doctrine. Also, formal religious groups that took vows were offended by the idea that a random group could attain "religious status" without committing themselves by taking vows. In fact, Beghards and Beguines could leave their community at any time.
Beguines and Beghards started to wane before the Middle Ages were over, but some communities lingered; there were still 34 communities in 1734 in Flanders. Pope Gregory XVI referred to them in a 1832 encyclical. The world's "last Beguine" died in 2013.
The Council of Vienne tackled church reform, and attacked another religious group, which I'll tell you about next time.