It soon became a regular practice for them to appoint a knight to attend in the Exchequer and carry out their duties.
In the 12th century, the two hereditary positions of Chamberlains-in-Fee were held by the Maudit and Fitzgerald families.
He forfeited it to the Crown on her death in 1293, after which time the office-holders of this chamberlainship were appointed by patent.
Source: [1] Appointed by the senior Chamberlain in Fee (the owner of the manor of Hanslope) until 1483, when that office was absorbed by the Crown, and thereafter by the monarch.
Appointed by the junior Chamberlain in Fee (usually the owner of the manor of Highworth) until 1290, when that office was forfeited to the Crown, and thereafter by the monarch.