Complex sentence: The Basilica of Sant'Eustorgio is a church in Milan, northern Italy, for many years an important centre for pilgrims on their journey to Rome or the Holy Land, because it was the site of the tomb of the Three Magi or "Three Kings".
Split into simpler sentences: The Basilica of Sant'Eustorgio is a church in Milan, northern Italy. It was for many years an important centre for pilgrims on their journey to Rome or to the Holy Land, because it was the site of the tomb of the Three Magi or "Three Kings".