Complex sentence: Twrog is reputed to have thrown the stone from the top of Moelwyn crushing a pagan altar in the valley below; it is said that his handprints can still be seen in the stone.
Split into simpler sentences: Twrog is reputed to have thrown the stone from the top of Moelwyn crushing a pagan altar in the valley below. It is said that his handprints can still be seen in the stone.