bellow the answer write the teams that are welsh and are in the premier league then i will answer the question there are no welsh teams in the premier league.
Welsh Football League was created in 1904.
Cardiff and swansea are in the football league, but wrexham, Newport county,colwyn bay and merthyr tydfil also play in lower English leagues
Welsh Football League Division One was created in 1904.
Welsh Football League Division Three was created in 1904.
The three Great Britain countries have their own teams. The England, Wales, and Scotland football teams are all different. Most players from all teams play club football in England but all have separate national teams. --As does Northern Ireland (ie the four UK countries have their own football teams). The English football league is the dominant league system, followed by Scotland's SPL. Wales focuses more on Rugby, and their best teams play in the English league (currently Cardiff, Swansea and Wrexham) as the Welsh league is not strong enough for them. Northern Ireland has its own league, but the best Northern Irish players usually play in the English or Scottish league, or outside fo the British Isles (though none of its teams play in England).
The Welsh Premier League is a competitive football (soccer) athletic league. The league is stations in Europe. It is one of the older association football leagues in Europe.
There are 18 clubs, and 12 teams.
There wasn't a professional football league in Wales at the time each club was founded, so they decided to join the closest one that was in existence. They're not the only Welsh clubs to play in the English league system: Wrexham and Newport Country have played in the Football League, and Merthyr Tydfil have reached the highest level in the non-league pyramid. The only downside to their participation in the English League is that they're not allowed to compete in the Welsh Cup, and so cannot qualify for Europe via that route.