de Say

Once settled and rewarded for their part in the Norman invasion of 1066, it is recorded their family name was anglicised to de Jay.

The family descends from Picot Avenel de Say, a vassal of Robert I, Duke of Normandy.

William de Say's descendants inherited the manor of West Greenwich, now known as Deptford, and adopted the Maminot arms, Quarterly, or and gules.

[5] Robert was an important vassal of Roger of Montgomery, the 1st Earl of Shrewsbury and a major early Norman magnate.

[7] His daughter married the local Welsh lord, Cadwgan ap Bleddyn, who acquired permission to move to England, probably Clun, in 1109.