Ralph VI De Greystoke
Ralph VI was born on October 18th, 1353.  He died at the age of 64 on April 6th, 1418.

 Catherine De Clifford
Catherine was born in 1357.  She died at the age of 56 on April 23rd, 1413.

 John De Greystoke
John was born in 1389.  He died at the age of 47 on August 8th, 1436.