Complex sentence: Unlike most of his contemporaries, Hunyadi did not use his great revenues or the military and political weight of his thousands of retainers simply for his personal aggrandizement; for many years, he bore a large share of the cost of fighting the Ottomans.
Split into simpler sentences: Unlike most of his contemporaries, Hunyadi did not use his great revenues or the military and political weight of his thousands of retainers simply for his personal aggrandizement. For many years, he bore a large share of the cost of fighting the Ottomans.