John Darcy
John was born in 1377 in Knaith, Lincolnshire, England.  He died at the age of 34 on December 9th, 1411 in Knaith, Lincolnshire, England.

 Margaret de Grey
Margaret was born before 1385.  She died after 1400.

 Philip Darcy
Philip was born about 1398.  He died on August 2nd, 1418.

 John Darcy
John was born about 1400.  He died in 1458.