In today's language a buzone might be termed one of the great and the good. They were knights with substantial holdings in a shire, perhaps 500 acres or more. Most had probably been called to parliament. *Bracton said that they were 'four or six or more of the greater men of the *county, who are called the buzones of the county and on whose nod the views of the others depend'. [< Fr. buzo = great]
Dictionary of Medieval Terms and Phrases. Christopher Coredon with Ann Williams.