William Ros, 1st Baron Ros

249-50); but these writs, issued by Simon in the King's name, are no longer regarded as valid for the creation of peerages.

[7] William Ros succeeded to the family honours and estates on the death of his mother.

[8] He discovered that his kinsman Robert de Ros, Lord of Werke, intended to give up his castle to the Scots.

[8] Through his marriage to Maud de Vaux, the patronage of Penteney and Blakeney Priories in Norfolk and of Frestun in Lincolnshire came into the Ros family.

William Ros married before 1287 Maud de Vaux (born c. 1261), younger daughter and coheiress of John de Vaux, by his 2nd wife, Sibyl, by whom he had four sons and four daughters.