1780 in Wales

This article is about the particular significance of the year 1780 to Wales and its people.

Incumbents

 * Lord Lieutenant of Anglesey - Sir Nicholas Bayly, 2nd Baronet
 * Lord Lieutenant of Brecknockshire and Monmouthshire – Charles Morgan of Dderw
 * Lord Lieutenant of Caernarvonshire - Thomas Wynn
 * Lord Lieutenant of Cardiganshire – Wilmot Vaughan, 1st Earl of Lisburne
 * Lord Lieutenant of Carmarthenshire – Thomas Johnes (until 28 April); John Vaughan (from 28 April
 * Lord Lieutenant of Denbighshire - Richard Myddelton
 * Lord Lieutenant of Flintshire - Sir Roger Mostyn, 5th Baronet
 * Lord Lieutenant of Glamorgan – John Stuart, Lord Mountstuart
 * Lord Lieutenant of Merionethshire - Sir Watkin Williams-Wynn, 4th Baronet
 * Lord Lieutenant of Montgomeryshire – George Herbert, 2nd Earl of Powis
 * Lord Lieutenant of Pembrokeshire – Sir Hugh Owen, 5th Baronet
 * Lord Lieutenant of Radnorshire – Edward Harley, 4th Earl of Oxford and Earl Mortimer


 * Bishop of Bangor – John Moore
 * Bishop of Llandaff – Shute Barrington
 * Bishop of St Asaph – Jonathan Shipley
 * Bishop of St Davids – John Warren

Events

 * January - Admiral Sir Thomas Foley plays an important role in the relief of Gibraltar.
 * 1 July - Anthony Bacon acquires the lease of the Hirwaun ironworks.
 * 26 August - Edward Williames Salusbury Vaughan succeeds to the Rûg estate.
 * 29 September - Sir Watkin Lewes is elected Lord Mayor of London.
 * unknown dates
 * Thomas Parry Jones-Parry marries his cousin Margaret and acquires the Madryn estate.
 * The Ladies of Llangollen settle at Plas Newydd.
 * St David's Club established in Aberystwyth, the oldest gentlemen's club in Wales.
 * Richard Price devises the "Northampton Tables" for calculating actuarial valuation for assurance and pensions.
 * The development of Ebbw Vale Steelworks begins.

New books

 * John Walters - Poems with Notes

Music

 * Henry Mills of Llanidloes impresses Thomas Charles so much with his singing that he is appointed to supervise the improvement of congregational singing in the district.

Births

 * 10 February - James Henry Cotton, Dean of Bangor (died 1862)
 * 15 April - Angharad Llwyd, antiquary (died 1866)
 * 14 May - Sir Thomas Frankland Lewis, politician (died 1855)
 * 7 October - Wyndham Lewis, MP (died 1838)
 * date unknown
 * Dic Aberdaron (Richard Robert Jones), traveller and linguist (died 1843)
 * Thomas Prothero, lawyer and businessman (died 1853)

Deaths

 * 6 March - Sir John Meredith, lawyer, 65
 * 1 April - Sir Stephen Glynne, 7th Baronet, 35 (ruptured blood-vessel)
 * May - Thomas Johnes, Lord Lieutenant of Carmarthenshire, about 59
 * date unknown
 * Howell Gwynne, former MP and Lord Lieutenant of Radnorshire, 61/62
 * Richard Thomas, genealogist, 46