Roger de LEYBOURNE
Roger de was born about 1222.  He died in October 1271.

 Idonea de VIPONT
Idonea de was born about 1220 in Appleby, Westmorelandshire, England.  She died on November 10th, 1333.

 William de LEYBOURNE
William de was born in 1242 in Leybourne, Kent, England.