Family: Henry DE PERCY, 3rd Baron Percy of Alnwick / Joan DE ORREBY (F5433)
m. Abt 1365-
Male
Henry DE PERCY, 3rd Baron Percy of Alnwick
Birth Abt 1321 Death Abt 18 May 1368 Alnwick, Northumberland, England 
Burial 1368 Alnwick Abbey Marriage Abt 1365 Other Spouse Mary, of Lancaster | F3842 Marriage Father Sir Henry PERCY, 9th Baron Percy of Topcliffe, 2nd Baron Percy of A | F3965 Group Sheet Mother Idonia DE CLIFFORD | F3965 Group Sheet
Female
Joan DE ORREBY
Birth Death 31 Aug 1369 Alnwick, Northumberland, England Burial Other Spouse Sir Constantine DE CLIFTON | F5435 Marriage Aft 1368 Father John DE ORREBY, Lord Orreby | F5434 Group Sheet Mother
Female
Mary PERCY
Birth 12 Mar 1367 Death 25 Aug 1394 Burial Spouse John DE ROS, 5th Baron de Ros of Helmsley, KB | F5436 Marriage Bef 22 Jun 1382
