Gruffydd Maelor I

Gruffydd Maelor (died 1191) was a Prince of Powys Fadog in Wales.

He married a daughter of King Owain Gwynedd, first Prince of Wales, and was a brother of Prince Owain Brogyntyn, ancestor of the Barons of Cymmer-yn-Edeirnion.

Maelor was a son of Prince Madog ap Maredudd by Susanna, daughter of King Gruffudd ap Cynan of the House of Aberffraw.

He was to be the founder of the principal ruling family of northern Powys during the 13th century.

[1] These lordships later merged and became the Lordship of Bromfield and Yale, belonging to John de Warenne, 6th Earl of Surrey, who was later defeated at the Battle of Stirling Bridge by William Wallace.