Complex sentence: A rather different poet of this period was Hywel ab Owain Gwynedd (d.1170), known as the Poet-Prince, who as the son and heir of Prince Owain Gwynedd, was not a professional poet.
Split into simpler sentences: A rather different poet of this period was Hywel ab Owain Gwynedd (d.1170), known as the Poet-Prince. As the son and heir of Prince Owain Gwynedd, he was not a professional poet.