Thomas Cromwell, 3rd Earl of Ardglass

He succeeded to the titles of 6th Baron Cromwell of Oakham, in the Peerage of England (1540), 3rd Viscount Lecale, in Ulster, in the Peerage of Ireland (1624) and 3rd Earl of Ardglass, in the Peerage of Ireland (1645) on 3 October 1668. On 29 of the same month and year he matriculated at Christ Church, University of Oxford.[2] He married Honora Boyle (d. c. November 1710, buried 14 November 1710 St Patrick's Cathedral, Dublin, sister and co-heiress of Murrough Boyle, 1st Viscount Blesington, daughter of The Most Rev. Michael Boyle, DD, Archbishop of Armagh and Lord Chancellor of Ireland, without issue.[2]

Thomas Cromwell died 11 April 1682 and was buried at Ilam, Staffordshire. He was succeeded by his uncle Vere Essex Cromwell, 4th Earl of Ardglass.[2] His widow Mary, married secondly, before 1687, Francis Cuffe (12 September 1656 – 26 December 1694), Member of Parliament for County Mayo in the Parliament of Ireland, son of Sir James Cuffe of Ballinrobe, County Mayo, and had issue, and married thirdly, c. 1700, as his first wife Captain Sir Thomas Burdett, 1st Baronet, of Garahill, County Carlow (14 September 1668 – 14 April 1727), without issue. She died 14 April 1727 and was buried at St Patrick's Cathedral, Dublin[2]

• "Ardglass, Earl of (I, 1645 – 1687). Cracroft's Peerage". Cracroftspeerage.co.uk. Retrieved 24 October 2013.
• Burke, Bernard (1866). A Genealogical History of the dormant, abeyant, forfeited and extinct peerages of the British Empire. London: Harrison.CS1 maint: ref=harv (link)
• Cokayne, G. E. (1910). Gibbs, Vicary (ed.). The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, vol. I. London: St. Catherine Press.CS1 maint: ref=harv (link)
• Cokayne, G. E. (1913). Gibbs, Vicary (ed.). The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, vol. III. London: St. Catherine Press.CS1 maint: ref=harv (link)
• Cokayne, G. E. (2000). Gibbs,Vicary; et al. (eds.). The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, vol. I (new ed.). Gloucester: Alan Sutton Publishing.CS1 maint: ref=harv (link)
• "Cromwell, Baron (E, 1540 – 1687). Cracroft's Peerage". Cracroftspeerage.co.uk. Retrieved 24 October 2013.
• "Thomas Cromwell, Earl of Ardglass, Family Search: Community Trees. British Isles. Peerage, Baronetage, and Landed Gentry Families with Extended Lineage". Histfam.familysearch.org. Retrieved 25 October 2013.

• Ardglass, Earl of (I, 1645 - 1687) Cracroft's Peerage