Thomas de Beauchamp, 12th Earl of Warwick
Thomas was born in 1339.  He died at the age of 62 on April 8th, 1401.

 Margaret Ferrers
She died on January 27th, 1407.

 Sir Richard de Beauchamp, 13th Earl of Warwick
Richard was born on January 23rd, 1382.  He died at the age of 57 on April 30th, 1439.