Complex sentence: Early in the reign of Queen Mary he was deprived of all his preferments, whereupon he went into exile, residing at Frankfurt till after the accession of Queen Elizabeth, when he returned to England and was restored to the rectory of Thorington.
Split into simpler sentences: Early in the reign of Queen Mary he was deprived of all his preferments. He returned to England and was restored to the rectory of Thorington.