Llywelyn ap Gruffydd Fychan died in 1401.
His father was Gruffydd Fychan II and his mother was Elen ferch Tomas ap Llywelyn.
Llywelyn ap Gruffydd was born in 1223 and died in 1282. He was the last independent ruler of Wales before its conquest by England. He was the grandson of Llywelyn the Great, and died at the Battle of Orewin Bridge near Cilmeri in central Wales, on December 11, 1282. Gruffudd ap Llywelyn, the man in question here however, was his father. He was imprisoned in the Tower of London with his eldest son, Llywellyn ap Gruffydd's elder brother, Owain. On 1st March 1244, while trying to escape, Gruffydd fell and was killed. It is said he hit the ground head first with such force that his head was pushed into his shoulders.
He was known as Llywelyn ap Gruffydd, meaning Llywelyn son of Gruffydd. Gruffydd being the eldest son of Llywelyn the Great. He is known as 'the Last' because he was the last native Welsh prince of Wales.
Llywelyn ap Maredudd ap Llywelyn ap Maredudd ap Cynan died in 1263.
Anarawd ap Gruffydd died in 1143.
Cadell ap Gruffydd died in 1175.
Gruffydd ap Cynan died in 1137.
Maredudd ap Gruffydd died in 1155.
Caradog ap Gruffydd died in 1081.
Gruffydd ap Rhydderch died in 1055.
Dafydd ap Gruffydd died in 1283.
Llywelyn ap Dafydd died in 1287.