Family: John DE ROS, 5th Baron de Ros of Helmsley, KB / Mary PERCY (F5436)
m. Bef 22 Jun 1382-
Male
John DE ROS, 5th Baron de Ros of Helmsley, KB
Birth Death 6 Aug 1393 Paphos, Cyprus 
Burial Rievaulx Abbey, Helmsley, Yorkshire, England Marriage Bef 22 Jun 1382 Father Mother
Female
Mary PERCY
Birth 12 Mar 1367 Death 25 Aug 1394 Burial Father Henry DE PERCY, 3rd Baron Percy of Alnwick | F5433 Group Sheet Mother Joan DE ORREBY | F5433 Group Sheet
