Cyngen Glodrydd was an early 6th-century

King of Powys Prior to the Conquest of Wales, completed in 1282, Wales consisted of a number of independent kingdoms, the most important being Gwynedd, Powys, Deheubarth (originally Ceredigion, Seisyllwg and Dyfed) and Morgannwg (Glywysing and Gwent). Bounda ...

. He was a descendant of King

Cadell Ddyrnllwg Cadell Ddyrnllwg (Welsh for "Cadell of the Gleaming Hilt"; born c. AD 430) was a mid-5th century King of Powys. Cadell appears to have been driven out of his father Cadeyrn's kingdom by Irish pirates during the chaos of the Saxon insurrection i ...

. Cyngen married St. Tudlwystl, a daughter of Brychan ap Gwyngwen ap Tewdr (often confused with King Brychan Brycheiniog) and they were parents of a large family: Brochfael Ysgithrog, Cadell, Ieuaf, Maig Myngfras, Mawn and Sanan. What is probably his memorial stone was discovered being used as a gatepost in Tywyn (Gwynedd) in 1761. He was apparently buried with St. Cadfan in the local churchyard.

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