Sir John Scudamore was a 15th-century English landowner from Herefordshire who acted as constable and steward of a number of Royal castles in South Wales.
The Kentchurch line were more sympathetic to the Welsh grievances, possibly because their geographical location, closer to Wales, enabled a greater understanding and knowledge of the people and their culture first hand.
Sir John Scudamore held lands in Ewyas, Kentchurch and Holme Lacy and was the Deputy Squire of King Henry IV's Lordship of Brecon.
In 1402 Sir John Scudamore was actively defending Carreg Cennen Castle in Carmarthenshire against Welsh forces and actually repelling successive onslaughts of Owain Glyndŵr.
It has been postulated that Sir John Scudamore and Alys were the harbourers of Owain Glyndŵr after his disappearance after 1412 and kept him in his final years in secret on their estates.