Complex sentence: The church and holy well are dedicated to Saint Cleder (or Clederus), one of the twenty-four children of Saint Brychan, a Welsh saint and King of Brycheiniog in the 5th century.
Split into simpler sentences: The church and holy well are dedicated to Saint Cleder (or Clederus). He was one of the twenty-four children of Saint Brychan, a Welsh saint and King of Brycheiniog in the 5th century.