Complex sentence: In one incident, Safir is disguised as Sir Ector de Maris, and fights with Sir Helior le Preuse, defeats him and wins Sir Espinogres' lady.
Split into simpler sentences: In one incident, Safir is disguised as Sir Ector de Maris and fights with Sir Helior le Preuse. He defeats him and wins Sir Espinogres' lady.