Complex sentence: Anglo-Norman authority over the area began again in 1241 when Dafydd ap Llywelyn yielded possession of the castle to the de Montalt family; however he recaptured it from the Plantagenet nobility in 1245.
Split into simpler sentences: Anglo-Norman authority over the area began again in 1241 when Dafydd ap Llywelyn yielded possession of the castle to the de Montalt family. However, he recaptured it from the Plantagenet nobility in 1245.