Nicholas Bagenal (Welsh MP)

Nicholas Bagenal or Bagenall (1629–1712) was an English MP for Anglesey, Wales.

He was born in Bath, Somerset, the son of Arthur Bagenal and his wife, Magdalene, daughter of Sir Richard Trevor of Trevalyn, Denbighshire. He was the grandson of Henry Bagenal, Marshal of the Army in Ireland. He owned estates at Plas Newydd, Anglesey and in Newry, County Down.

Bagenal was a commissioner for Assessment for Anglesey (1647–1648, 1660–1680), for Caernarvon (1660–1663, 1664–1680) and for Anglesey and Caernarvon (1689–1690). He was elected MP for Anglesey in 1661 and was a Deputy Lieutenant (1661–?1680, 1689–1712) and Custos Rotulorum for Anglesey (1689-1690). He was elected a Fellow of the Royal Society in 1664.

On Bagenal's death with no surviving heirs, the family estates at Anglesey and Newry passed to his cousins Edward Bayly and Robert Needham respectively, and ultimately to the Marquess of Anglesey and the Earl of Kilmorey. He had married twice, firstly Sidney, daughter of Sir Robert Grosvenor of Eaton, Cheshire and secondly Anne Charlotte, daughter of Robert Bruce, 2nd Earl of Elgin and 1st Earl of Ailesbury, with whom he had a daughter Elizabeth.