Alternate Time-Line: Brittany becomes an independent from France at any time between 1815 and 1914, either in 1815 or in 1871.
In Wales, industrialisation takes place in a way that does not harm the Welsh language, and in the 1890s, LLoyd George and Tom Ellis's dreams of Cymru Fydd becoming a Parnell style Home Rule party slowly materialize and by 1910, LLoyd George is leading such a party in the House of Commons, and forces Asquith to consider Home Rule. Somehow, without Lloyd George being the chancellor of the Ex-checker to introduce the People's Budget, the House of Lords still gets it power of veto reduced by someone other than him, and Wales gets it Home Rule in 1912, unlike Ireland, whose Home Rule only gets passed in 1914 and suspended because of the war (as in OTL.) Lloyd George, stands for election for the devolved Welsh House of Commons and becomes the First First minister of Wales. Without him to replace Asquith as Prime Minister of the United Kingdom, Bonar Law becomes Prime Minister during the War to replace Asquith and after the war, it is a conservative majority government which rules the country and fights the Irish war of independence in a more brutal way than LLoyd George in OTL. Many Cymru Fydd politicians in the Welsh devolved Parliament are dissolusioned with the Conservative government and its policies in Ireland, and argue for a declaration of independence arguing that Wales can pay its way as it has a lot of industry. LLoyd George secretly hopes for the Declaration not to gain a majority, but it does and LLoyd George then supports the new 'Welsh Republic'. The Tory Government in Westminster refuses to recognise it, and Wales fights with Ireland against the UK in which an Irish Free state and a Welsh Free state have dominion status. Wales, like Ireland, later becomes a Republic.
How would Brittany and Wales relate to each other from the 1920s onwards if they were both independent states?