Ynysmaengwyn

It was in the commote of Ystumanner or Ystum Anner that Gruffudd ap Gwenwynwyn did homage and swore fealty to Llywelyn ap Gruffudd on 12 December 1263. In return he was made a vassal lord and the lands taken from him about six years earlier were restored to him. The commote was in the cantref of Meirionnydd. His daughter Nest married Llywelyn ap Cynwrig ab Osborn Wyddel, and Ynysymaengwyn was to remain in the hands of their direct male descendants for well over two centuries. Llywelyn's great-great-grandson Siencyn (or Jenkin) ab Iorwerth ab Einion ap Gruffudd ap Llywelyn farmed Crown lands in Cyfyng and Caethle as well as the Aberdyfi ferry in the middle of the 15th century. Siencyn's son…

Ynysymaengwyn was inherited by Sir James and Elizabeth's daughter Bridget who married Robert Corbet (d. 1644), the third son of Sir Vincent Corbet of Moreton Corbet, Shropshire. Robert Corbet was a Royalist during the English Civil War, during which Ynysymaengwyn was burnt to the ground to prevent it from falling into the hands of the Parliamentarians. Robert was followed by his son Vincent Corbet, who was followed by his son, another Vincent. On this Vincent's death in 1723, Ynysymaengwyn passed to his daughter Anne (d. 1760) who married Athelstan Owen (1676-1731) of Rhiwsaeson, Llanbryn-mair. Corbet Owen, the eldest son, died without issue in 1750, following which the Rhiwsaeson estate…