Complex sentence: As an unwanted cripple, Cenydd was placed in a cradle made of osiers, cast into the Loughor River estuary and eventually landed on'Ynys Weryn' or Worm's Head island.
Split into simpler sentences: As an unwanted cripple, Cenydd was placed in a cradle made of osiers and cast into the Lougher estuary. He was washed out to sea, eventually landing on'Ynys Weryn' or Worm's Head Island.