Complex sentence: In Welsh literature, where he appears as Howel or Hywel, his father is named "Emhyr of Brittany," and certain legends pertain that Hoel was the father of Saint Tudwal.
Split into simpler sentences: In Welsh literature, where he appears as Howel or Hywel, his father is named "Emhyr of Brittany". Certain legends also pertain that Hoel was the father of Saint Tudwal.