William de PERT
William de was born about 1355 in Yorkshire, England.  He died before 1428.

 Joan le SCROPE
Joan le was born about 1365 in Carleton Castle, Lincolnshire, England.  She died on September 20th, 1427.

 Isabel de PERT
Isabel de was born about 1383 in Carleton castle, Lincolnshire, England.  She died about 1442 in Stokeburne, Durham, England.