William Mostyn Owen

William Mostyn Owen ( 1742–11 March 1795), born William Mostyn, was a British land-owner and politician who sat in the House of Commons from 1774 to 1795.

Early life William Mostyn was born 1742, the eldest son of William Mostyn of Bryngwyn, and his wife Grace Wynn, daughter of Robert Wynn of Plas Newydd.

He was educated at Oriel College, Oxford, where he matriculated in 1761, and studied law at the Middle Temple, where he was admitted in 1759. He later succeeded to the estate in Woodhouse, Shropshire, of his cousin, John Lloyd Owen, and thereafter took the name Owen. Up to 1772, the families were allied in their agreement over whom to return as the county's single Member of Parliament; Edward Kynaston was their choice, but he died in 1772, followed by Henry Herbert, 1st Earl of Powis.

Personal life He married Rebecca Dod, daughter of Thomas Dod of Edge, Cheshire ( 1688–1759). With her, he had the following issue: William Mostyn Owen (died 1849), who succeeded to his father's estates, and who married Harriet Elizabeth Cumming, eldest daughter of Major T. Cumming of Bath and had issue. The Reverend Edward Henry Owen (died 1839), a Fellow of All Souls College, Oxford, and rector of Cound, Shropshire (from 1816), who married Elizabeth Sophia Hinchliffe, second daughter of the Rev. Edward Hinchliffe of Barthomley, Cheshire, and had issue. Rebecca Owen, who married John Humffreys of Llywn, Montgomeryshire. Harriet Owen, who married John Mytton of Halston, Shropshire (1768–1798) Sobieski Owen (died 1858), who married Richard Betenson Dean (1772–1850), chairman of the board of Customs. Eloisa Owen (died 1872), who married the Rev. Henry Cotton, Rector of Hinstock, Vicar of Great Ness, Shropshire, and had issue. Laura (Mostyn) Owen (died 1864).

He died on 11 March 1795 and was succeeded in his estate by his eldest son, William Mostyn Owen.

Descendants Through his eldest son, his granddaughter was, Frances Mostyn Owen, who was married to MP Robert Myddelton Biddulph (1805–1872), the brother of Thomas Myddelton Biddulph (1809–1878), an officer in the British Army and courtier, both of them sons of MP Robert Myddelton Biddulph (1761–1814).

Through his daughter, Frances Maria Owen, he was grandfather to Richard Noel Noel-Hill, 5th Baron Berwick (1800–1861). Through another daughter, Harriet Owen, he was the grandfather of John Mytton (1796–1834), an eccentric Member of Parliament for Shrewsbury from 1819 to 1820.