We don't know when he was born, but William made him a bishop in 1049, when we assume he was at least 18 years old (a stretch, yes, but William could do what he liked in Normandy as its duke). A "best guess" for his birth is c.1030.
Being made a bishop was often a way for a lord to reward a subject with a respectable title and the revenues from collections and property values of the diocese, so there is no reason to assume Odo was a priest in anything more than name. His time in the historical record is more about being an advisor to William and a warrior who took part in the Norman Invasion of England and following battles. The illustration from the Bayeux Tapestry shown here has him wielding a club against the Saxons at the Battle of Hastings in 1066.
Why a club? Some say that as a priest he was forbidden the use of a sword, but the club was a cheaper and common weapon, capable of doing great damage to an opponent. William himself is shown with a club later in the tapestry. He also had with him a retinue that would have surrounded him and kept him safer than a typical soldier.
After the Conquest, the time came for rewards. William valued his half-brothers, granting them titles and lands. Odo became Earl of Kent in 1067 and remained a royal advisor, sometimes acting as regent when William was out of the country.
Unfortunately, he got a little too big for his mitre and did something that caused him to lose some lands. After that, he made an even bolder move that led to imprisonment. Tomorrow we'll look at how the mighty can fall.
