Nest ferch Rhys

Nest ferch Rhys (c. 1085 – before 1136) (popularly called Nesta or "Princess Nesta") was the only legitimate daughter of Rhys ap Tewdwr, last king of Deheubarth in Wales, by his wife, Gwladys ferch Rhiwallon ap Cynfyn of Powys. Her family is of the House of Dinefwr. Nest was the wife of Gerald de Windsor (c. 1075 – 1135), constable of Windsor Castle in Berkshire, by whom she was the ancestress of the FitzGerald dynasty and of the prominent Carew family, of Moulsford in Berkshire, Carew Castle in Pembrokeshire (in the Kingdom of Deheubarth) and of Mohuns Ottery in Devon (see Baron Carew, Earl of Totnes and Carew baronets).

Nest had two younger brothers, Gruffydd ap Rhys and Hywel, and, possibly, an older sister named Marared, as well as several older illegitimate half-brothers and half-sisters. After their father's death in battle in 1093, "the kingdom of the Britons fell" and was overrun by Normans. Nest's younger brother Gruffydd was spirited into Ireland for safety; their brother Hywel may have been captured by Arnulf de Montgomery, along with their mother, unless, as appears likelier, their mother was captured with Nest; their fate is unknown. Two older brothers, illegitimate sons of Rhys, one of them named Goronwy, were captured and executed.

After Nest reached puberty, she came to the attention of the youngest son of William the Conqueror, Henry I of England, to whom she bore one of his numerous illegitimate children, Henry FitzHenry (c. 1103–1158).

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