Thomas Bruce died on 21 December 1663 at the age of 64 .
Thomas Bruce was succeeded by his son and heir Robert Bruce , 2nd Earl of Elgin , 1st Earl of Ailesbury .
Thomas Bruce died on 21 December 1663 at the age of 64 , and was succeeded by his son and heir Robert Bruce , 2nd Earl of Elgin , 1st Earl of Ailesbury .