Complex sentence: On the recommendation of William Beale he was appointed secretary to Thomas Morton, the Anglican Bishop of Durham, time he spent on transcriptions of the Church Fathers; but in a year or so converted to Catholicism as result of his studies.
Split into simpler sentences: On the recommendation of William Beale he was appointed secretary to Thomas Morton, the Anglican Bishop of Durham, time he spent on transcriptions of the Church Fathers. A year or so later, he converted to Catholicism as result of his studies.