Earl Humphrey Stafford, Earl of Stafford
Humphrey was born in 1425.  He died at the age of 30 on May 22nd, 1455.

 Margaret Beaufort
Margaret was born on May 31st, 1443 in Bletsoe Castle, Bedfordshire, England.  She died at the age of 66 on June 29th, 1509 in Abbot's House, Cheyney Gates, Westminster, London, England.  She was buried in Westminster Abbey, Westminster, London, England.

 Henry Stafford 2nd Duke of Buckingham

Henry Stafford, 2nd Duke of Buckingham

Henry was born on September 4th, 1455.  He died  due to beheaded at the age of 28 on November 2nd, 1483 in Salisbury, Wiltshire, England.