Complex sentence: The remoteness of Esterháza, which was farther from Vienna than Eisenstadt, led Haydn gradually to feel more isolated and lonely Haydn longed to visit Vienna because of his friendships there.
Split into simpler sentences: The remoteness of Esterháza, which was farther from Vienna than Eisenstadt, led Haydn gradually to feel more isolated and lonely. He longed to visit Vienna because of his friendships there.