William Ponsonby, 1st Viscount Duncannon

William Ponsonby, 1st Viscount Duncannon (1659 – 17 November 1724), was an Anglo-Irish peer.

Background

He was born in 1659, the third son of Sir John Ponsonby (c. 1608/9 – 1678) of Bessborough in County Kilkenny, a colonel of Horse in the Commonwealth service, and the third son by Sir John's second wife Elizabeth, widow of Richard Wingfield and of Edward Trevor, and daughter of Henry Folliott, 1st Baron Folliott.

He had two full siblings, Henry and Elizabeth, and two halfbrothers. Folliott Wingfield, 1st Viscount Powerscourt, was his older halfbrother on his mother's side. He also had an older halfbrother, John, on his father's side.

Bessborough, formerly known as Kildalton, had been confiscated from Edmund Dalton, whose family had held it since the 13th century, for his part in the Irish Rebellion of 1641. It was granted to Sir John Ponsonby who renamed it after his second wife Elizabeth (Bess).

Early life

William Ponsonby matriculated as a fellow-commoner at Trinity College, Dublin, on 14 November 1677, at the age of eighteen. He succeeded his elder brother Sir Henry Ponsonby (eldest son of Sir John and Elizabeth) during the reign of King William III, and served as a colonel in the Army.

Political career

Ponsonby sat in the Irish House of Commons for Kilkenny County from 1692 to 1693, from 1695 to 1699 and from 1703 to 1721; he was appointed a member of the Irish Privy Council on 11 November 1715. On 11 September 1721 he was created Baron Bessborough, of Bessborough, County Kilkenny, in the Peerage of Ireland, and took his seat in the Irish House of Lords on 23 September. He was further created Viscount Duncannon, of the fort of Duncannon, county Wexford, on 28 February 1723.

Family

Ponsonby married Mary, daughter of the Hon. Randle Moore and granddaughter of Charles Moore, 2nd Viscount Drogheda, by whom he had nine children, three sons and six daughters. She died age 51 on 26 May 1713, and he died on 17 November 1724, when he was succeeded by his eldest son Brabazon. Lord Duncannon and his wife are buried in the church at Fiddown.

References

    Parliament of Ireland
    Preceded by
    John Grace
    Robert Walsh
    Member of Parliament for Kilkenny County
    1692–1721
    With: Richard Coote 1692–1693
    Agmondisham Cuffe 1695–1699
    Sir Henry Wemys 1703–1715
    William Flower 1715–1721
    Succeeded by
    William Flower
    Patrick Wemyss
    Peerage of Ireland
    New creation Viscount Duncannon
    1723–1724
    Succeeded by
    Brabazon Ponsonby
    Baron Bessborough
    1721–1724
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