ROBERT (Sir) de L'ISLE
ROBERT (Sir) was born in 1287.¹   He died at the age of 56 in 1343.¹ 

 MARGARET de BEAUCHAMP

 JOHN de L'ISLE
JOHN was born about 1305 in Harewood Castle, Yorkshire, england.¹   He died on October 14th, 1342.¹