GRONO (GRONWY)

  General Notes:

http://www.ancientwalesstudies.org/id55.html:
Gronwy, who died in his father's lifetime, married Tangwystl, daughter of Dyfnwal ap Alan ap Alser ap Tudwal Gloff ap Rhodri Mawr, by whom he had an only daughter and heiress, Rhiengar who succeeded to her grandfather's lands in Hereford, Gloucester, Erging and Ewias. She married Cyhelin ap Ivor ap Seferus, Lord of Buillt, Radnor, Ceri, Maelienydd, Elfael and Cydewain. By Cyhelin, she was the mother of Elystan Glodrydd, Prince of Fferllys. He was born in 927 and was named after King Athelstan who was his godfather. He was living in 1010 but slain in a civil broil in Montgomeryshire.

Grono (Gronwy) married Tangwysti, daughter of Dyfnwal AP ALAN and Unknown.