:1821 in Wales

{{For|United Kingdom incumbents|1821 in the United Kingdom#Incumbents}}

• Lord Lieutenant of Anglesey – Henry Paget, 1st Marquess of Anglesey{{cite book|author=Edward Breese|title=Kalendars of Gwynedd; or, Chronological lists of lords-lieutenant [&c.] ... for the counties of Anglesey, Caernarvon, and Merioneth|year=1873|page=24}}{{cite book | author=J.C. Sainty | author-link=John Sainty (civil servant) | title=List of Lieutenants of Counties of England and Wales 1660-1974 | publisher=Swift Printers (Sales) Ltd | location=London | year=1979}}{{cite book | last = Nicholas | first = Thomas | title = Annals and antiquities of the counties and county families of Wales | publisher = Genealogical Pub. Co | location = Baltimore | year = 1991 | isbn = 9780806313146 | page=695}}{{cite book|title=Cylchgrawn Hanes Cymru|publisher=University of Wales Press|year=1992|page=169}}
• Lord Lieutenant of Brecknockshire and Monmouthshire – Henry Somerset, 6th Duke of Beaufort{{cite book| author=Edwin Poole|title=The Illustrated History and Biography of Brecknockshire from the Earliest Times to the Present Day: Containing the General History, Antiquities, Sepulchral Monuments and Inscriptions|publisher=Edwin Poole|year=1886|page=378}}
• Lord Lieutenant of Caernarvonshire – Thomas Bulkeley, 7th Viscount Bulkeley{{cite book|author=Edward Breese|title=Kalendars of Gwynedd; or, Chronological lists of lords-lieutenant [&c.] ... for the counties of Anglesey, Caernarvon, and Merioneth|year=1873|page=26}}
• Lord Lieutenant of Cardiganshire – William Edward Powell
• Lord Lieutenant of Carmarthenshire – George Rice, 3rd Baron Dynevor
• Lord Lieutenant of Denbighshire – Sir Watkin Williams-Wynn, 5th Baronet
• Lord Lieutenant of Flintshire – Robert Grosvenor, 1st Marquess of Westminster{{cite journal|journal=Old Wales: Monthly Magazine of Antiquities for Wales and the Borders|title=not known|author-link=William Retlaw Williams|publisher="Old Wales" Office|year=1907|volume=3|page=106}}
• Lord Lieutenant of Glamorgan – John Crichton-Stuart, 2nd Marquess of Bute{{cite book | last = Nicholas | first = Thomas | title = Annals and antiquities of the counties and county families of Wales | publisher = Genealogical Pub. Co | location = Baltimore | year = 1991 | isbn = 9780806313146 | page=612}}
• Lord Lieutenant of Merionethshire – Sir Watkin Williams-Wynn, 5th Baronet{{cite book|author=Edward Breese|title=Kalendars of Gwynedd; or, Chronological lists of lords-lieutenant [&c.] ... for the counties of Anglesey, Caernarvon, and Merioneth|year=1873|page=29}}
• Lord Lieutenant of Montgomeryshire – Edward Clive, 1st Earl of Powis{{cite web|author=R. G. Thorne|url=http://www.historyofparliamentonline.org/volume/1790-1820/member/clive-edward-1754-1839|title=Clive, Edward, 2nd Baron Clive (1754-1839), of Walcot, Salop|website=The History of Parliament: the House of Commons 1790-1820|date=1986|access-date=13 November 2021}}
• Lord Lieutenant of Pembrokeshire – Richard Philipps, 1st Baron Milford{{cite DWB|id=s-PHIL-PIC-1491|title=Philipps family, of Picton|author=Bertie George Charles|date=1959|access-date=19 October 2021}}
• Lord Lieutenant of Radnorshire – George Rodney, 3rd Baron Rodney{{cite book|author=Jonathan Williams|title=The History of Radnorshire|publisher=R. Mason|year=1859|page=115}}{{cite book|author=William Stockdale|title=Stockdale's Peerage of the United Kingdom|year=1833|page=86}}

• Bishop of Bangor – Henry Majendie{{cite book | last = Fryde | first = E. B. | title = Handbook of British chronology | publisher = New York Cambridge University Press | location = Cambridge England | year = 1996 | isbn = 9780521563505 | page=292}}{{cite book|author=Thomas Duffus Hardy|title=Fasti Ecclesiae Anglicanae: Or A Calendar of the Principal Ecclesiastical Dignitaries in England and Wales...|publisher=University Press|year=1854|page=305}}
• Bishop of Llandaff – William Van Mildert{{cite ODNB|id=28096|title=Mildert, William|orig-year=2004|year=2007|last=Varley|first=Elizabeth}}
• Bishop of St Asaph – John Luxmoore{{cite book|title=The Church of the people and free church penny magazine|year=1859|page=179}}{{cite book|title=The Apostolical Succession in the Church of England|publisher=James Parkes and Company|year=1866|page=15}}
• Bishop of St Davids – Thomas Burgess{{cite book|author=Thomas Duffus Hardy|title=Fasti Ecclesiae Anglicanae: Or A Calendar of the Principal Ecclesiastical Dignitaries in England and Wales...|publisher=University Press|year=1854|page=307}}{{cite book|title=The Monthly Review Or Literary Journal Enlarged|publisher=Porter|year=1780|page=95}}{{cite book|title=The Later Correspondence of George III, Volume 3|author=George III (King of Great Britain)|publisher=University Press|year=1967|page=434}}{{cite web |title=Records of Past Fellows: Burgess, Thomas |url=https://catalogues.royalsociety.org/CalmView/Record.aspx?src=CalmView.Persons&id=NA3174&pos=1 |website=The Royal Society |access-date=30 October 2020}}

• 27 July – Sir Thomas Phillipps is created a baronet.{{cite book | last = Vincent | first = Benjamin | title = Haydn's Dictionary of Dates | publisher = SALZWASSER-VERLAG GMBH | location = S.l | year = 2020 | isbn = 9783846047958 | page=448}}
• 13 September – King George IV of the United Kingdom visits Brecon on his return from Ireland.{{cite book|author=Edwin Poole|title=The Illustrated History and Biography of Brecknockshire: From the Earliest Times to the Present Day|publisher=Edwin Poole|year=1886|page=71}}
• November – The first edition of Y Dysgedydd appears.{{cite book|author=Ifano Jones|title=A History of Printing and Printers in Wales to 1810, and of Successive and Related Printers to 1923|publisher=W. Lewis (printers), limited|year=1925|page=153}}
• 1 March – The first gas street lighting in Wales is installed at Swansea.{{cite book|title=The New Swansea Guide; Containing a Particular Description of the Town and Its Vicinity: Together with a Short History of the County|publisher=H. Griffith|year=1823|page=22}}
• unknown date – William Madocks obtains an Act of Parliament allowing him to build a port, later known as Porthmadog.{{cite book|title=Official Report of the Standing Committees|publisher=H.M. Stationery Office|year=1974|page=28}}

• John Elias – Golygiad Ysgrythurol ar Gyfiawnhad Pechadur{{cite book|author=Meic Stephens|title=Cydymaith i lenyddiaeth Cymru|url=https://books.google.com/books?id=Yy1KAAAAYAAJ|year=1986|publisher=Gwasg Prifysgol Cymru|isbn=978-0-7083-0915-5|page=187|language=cy}}
• Evan Evans (Ieuan Glan Geirionydd) – Pedwar Cyflwr Dyn (translation of a work by Thomas Boston
• David Richards (Dafydd Ionawr) – Cywydd y Dilyw

• Joseph Harris (Gomer) – Casgliad o Hymnau (collection of hymns)

• 21 April – Thomas Stephens, historian, literary critic and social reformer (d. 1875)
• 1 May – William Latham Bevan, church historian (d. 1908){{cite book|author1=Joseph Jackson Howard|author2=Frederick Arthur Crisp|title=Visitation of England and Wales|url=https://books.google.com/books?id=ieBBAQAAMAAJ|year=1893|publisher=Priv. printed|page=282}}
• 24 June – Guillermo Rawson, Argentinian politician (d. 1890)
• 6 July – Henry Hussey Vivian, 1st Baron Swansea (d. 1894){{cite book|author1=Leslie Stephen|author2=Sir Sidney Lee|title=DNB|url=https://books.google.com/books?id=ecIcAQAAIAAJ|year=1899|publisher=Smith, Elder, & Company|page=379}}
• 16 July – John Jones (Mathetes), preacher and writer (d. 1878)
• 14 November – John Owen (Owain Alaw), musician (d. 1883)
• 16 December - John Griffith, journalist writing under the pseudonym Y Gohebydd (d. 1877){{cite DWB|id=s-GRIF-JOH-1821|title=Griffith, John (Y Gohebydd; 1821 - 1877)|accessdate=24 February 2019}}
• date unknown - William Davies, politician (d. 1895)

• 16 February – Hugh Davies, botanist, 81
• 2 March - Benjamin Evans, Independent minister, 81
• 2 May – Hester Thrale, diarist, 80{{cite book|author1=Marilyn Bailey Ogilvie|author2=Joy Dorothy Harvey|author-link=Marilyn Bailey Ogilvie|author2-link=Joy Harvey|title=The Biographical Dictionary of Women in Science: L-Z|url=https://books.google.com/books?id=LTSYePZvSXYC&pg=PA1026|year=2000|publisher=Taylor & Francis|isbn=978-0-415-92040-7|pages=1026}}
• 21 May – John Jones (Jac Glan-y-gors), poet and satirist, 54{{cite book|author1=Iolo Morganwg|author2=Geraint H. Jenkins|author3=Ffion Mair Jones|title=The Correspondence of Iolo Morganwg: 1810–1826|url=https://books.google.com/books?id=P-1nAAAAMAAJ|year=2007|publisher=University of Wales Press|isbn=978-0-7083-2134-8|page=616}}
• 13 July – Sir Watkin Lewes, lord mayor of London, 81{{cite book|author1=Lewis Namier|author2=John Brooke|title=The House of Commons 1754-1790|url=https://books.google.com/books?id=Taw7DVGrbRcC&pg=PA40|year=1985|publisher=Boydell & Brewer|isbn=978-0-436-30420-0|pages=40}}
• 7 August – Caroline of Brunswick, former Princess of Wales (1795–1820), 53{{cite ODNB|first=E. A.|last=Smith|title=Caroline (1768–1821)|id=4722}}
• 12 October - William Jones, evangelist, 65
• November – Richard Fenton, poet and author, 74{{cite DWB|id=s-FENT-RIC-1747|title=Fenton, Richard|access-date=26 February 2018}}

• 1821 in Ireland

{{reflist}}

Wales

Wales

Category:1821 in Europe

Category:1820s in Wales