Complex sentence: Alongside Arthur, Manawydan fab Llyr and Cai the Tall are recorded as having fought in the battle; it is implied that the latter defeated a soldier (possibly chieftain) by the name of Garwlwyd during the conflict.
Split into simpler sentences: Alongside Arthur, Manawydan fab Llyr and Cai the Tall. ' are recorded as having fought in the battle; it is implied that the latter defeated a soldier (possibly chieftain) by the name of Garwlwyd during the conflict.