Complex sentence: Ragenfrid, mayor of the palace of Neustria and Burgundy (appointed by King Dagobert III), defeats Theudoald in the first battle of the Frankish civil war, following the death of Pepin II (of Herstal).
Split into simpler sentences: Ragenfrid, mayor of the palace of Neustria and Burgundy, appointed by king Dagobert III, defeats Theudoald. First battle of the Frankish civil war following the death of Pepin II (of Herstal).