1st Baronet of Killua Castle and Minister of Parliament in Westmeath Co Ireland
- Son of Benjamin Chapman (d1779) and Anne Tighe
- 1754 : Estimated year of birth
- 1776-Feb-20 (?) : Marriage to Anne Lowther (1756-1801) but had no surviving male children - she was daughter of John Lowther and Anne Billing lived at Staffordstown, County Meath, Ireland,
- 1782-Feb-10 : Created Title of 1st Baronet of Killua Castle
- 1810-Aug : Death - Title passes to his brother Sir Thomas Chapman (1756-1837). he becomes 2nd Baronet of Killua Castle.
Sir Benjamin Chapman, 1st Bt. was a practising Barrister in 1768. He was awarded the honorary degree of Doctor of Law (LL.D.) by Dublin University, Dublin, County Dublin, Ireland, in 1772. He held the office of Member of Parliament (M.P.) for Fore [Ireland] between 1772 and 1776. He held the office of Member of Parliament (M.P.) for County Westmeath [Ireland] between 1776 and 1783. He was created 1st Baronet Chapman, of St. Lucy's, co. Westmeath [Ireland] on 11 March 1782, with a special remainder to his brother, Sir Thomas Chapman.
Anne Lowther was the daughter of John Lowther and Anne Billing. She married Sir Benjamin Chapman, 1st Bt., son of Benjamin Chapman and Anne Tighe, circa 20 February 1776.1 She died in 1801. From circa 20 February 1776, her married name became Chapman.
Citations: George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume V, page 405. Hereinafter cited as The Complete Baronetage.
- Descendants of Captain Benjamin Chapman
- The Peerage
- Burke, John. A General and heraldic dictionary of the peerage and baronetage of the British Empire. London: H. Colburn and R. Bentley. pp. 229.
- George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume V, page 405. Hereinafter cited as The Complete Baronetage.