Gruffydd ap Rhys ap Thomas

Sir Gruffydd ap Rhys KG (c. 1478–1521) (also known as Griffith Ryce in some antiquarian English sources) was a Welsh nobleman.

Henry VII of England aimed to have his son friends with influential young men with powerful fathers in Henry's kingdom, and Gruffydd's father was one of the most powerful men in Wales after the death of Jasper Tudor in 1495, and he was chosen to serve the young Prince.

During the funeral service for the Prince in Worcester Cathedral, he once again carried Arthur's "rich embroidered banner."

[3] They had one son: Rhys ap Griffith (1508–1531), who was later executed by Henry VIII for treason as he was considered a threat to Henry VIII and was executed for treason on charges widely believed to be false in 1531 (purportedly for inscribing the name "Fitz Uryan" on his armour).

After his death, in July 1543 her friend the diplomat Ralph Sadler recommended her to Henry VIII to be sent to Scotland to join the household of Mary, Queen of Scots.