William De Percy IV Lord Percy VII Baron Percy
William De Percy IV Lord Percy VII Baron was born in 1185 in Alnwick, Northumberland, England.  He died at the age of 60 in 1245.

 Eleanor De Baliol
Eleanor was born in 1200 in Red Castle, Augushire, Scotland.  Eleanor is no longer alive.

 Ingelram De Percy Lord Topcliff
Ingelram De Percy Lord was born in 1216.

 Alan De Percy
Alan was born in 1218.

 Walter De Percy
Walter was born in 1222.

 William De Percy
William was born in 1224.

 Josceline De Percy Lord Linton
Josceline De Percy Lord was born in 1227.

 Geoffrey De Percy Lord Semar
Geoffrey De Percy Lord was born in 1231.

 Henry De Percy VIII Baron Percy
Henry De Percy VIII Baron was born in 1235 in Whitby, Yorkshire, England.  He died at the age of 37 on August 29th, 1272.