Complex sentence: According to William Miller, Barnabas and Sophronios, two Athenian monks, founded the monastery, which was famous for an icon of the Virgin Mary known as the "Panagia Gorgoepekoos", said to have been painted by the Apostle Luke.
Split into simpler sentences: According to William Miller, Barnabas and Sophronios, two Athenian monks, founded the monastery. It became famous for an icon of the Virgin Mary known as the "Panagia Gorgoepekoos", said to have been painted by the Apostle Luke.