Henry III De Percy
Henry III was born on February 6th, 1300.  He died at the age of 51 on February 25th, 1351.

 Iodena De Clifford
Iodena was born in 1303.  She died at the age of 62 on August 24th, 1365.

 Isabel De Percy
Isabel was born in 1299.  She died at the age of 66 on August 24th, 1365.

 Henry De Percy
Henry was born in 1320.  He died at the age of 48 on May 13th, 1368.

 Richard De Percy
Richard was born in 1322.

 Roger De Percy
Roger was born in 1324.

 Robert De Percy
Robert was born in 1326.

 Thomas De Percy
Thomas was born in 1328.  He died at the age of 41 in 1369.

 Margaret De Percy
Margaret was born in 1332.  She died at the age of 43 on September 2nd, 1375.

 William De Percy
William was born in 1332.

 Eleanor De Percy
Eleanor was born in 1336.

 Maud De Percy
Maud was born in 1345.  She died at the age of 45 in 1390.