Complex sentence: Barry Town, Wales' most successful side suffered relegation from the League of Wales Division 1 to League of Wales Division 2 following their relegation from the League of Wales in 2004.
Split into simpler sentences: Barry Town, historically the most successful team in the League of Wales, suffered further relegation from the League of Wales Division 1 to League of Wales Division 2. This followed their relegation from the League of Wales Premier division in 2004.