Biset was one of the most frequent witnesses on Henry's documents, and served the king as a justice and in financial matters.
The elder Biset held lands in Derbyshire and Nottinghamshire as the tenant of Stephen, Count of Aumale.
In April through December 1154, Bisset only witnessed Henry's documents that were drawn up in France.
[8] Biset married Alice, who was the sister and heiress of Gilbert de Falaise, lord of Cany in France.
Manasser's heir was his son, named Henry Bisset, who was still underage at his father's death in 1177.