Complex sentence: In 899, these Magyars defeated Berengar's army in the Battle of Brenta River and invaded the northern regions of Italy and pillaged the countryside around Treviso, Vicenza, Verona, Brescia, Bergamo and Milan.
Split into simpler sentences: In 899, these Magyars defeated Berengar's army in the Battle of Brenta River and invaded the northern regions of Italy. They pillaged the countryside around Treviso, Vicenza, Verona, Brescia, Bergamo and Milan.