Patrick Graham
Patrick was born in 1382.  He died at the age of 31 on August 10th, 1413.

 Euphemia Stewart
Euphemia was born in 1384.  She died at the age of 31 in October 1415.

 Euphemia Graham
Euphemia was born in 1408 in Strathearn, Perthshire, Scotland.  She died at the age of 60 on November 1st, 1468 in Cadzow, Lanarkshire, Scotland.