Complex sentence: In June 1661 he became a gentleman pensioner to Charles II. He was a charismatic advocate of the Catholic cause and is credited with several highly profile conversions, including possibly, the future James II. In 1673 James appointed him secretary to his wife, Mary of Modena.
Split into simpler sentences: In June 1661 he became a gentleman pensioner to Charles II. He was a charismatic advocate of the Catholic cause. He is credited with several highly profile conversions, including possibly, the future James II. In 1673 James appointed him secretary to his wife, Mary of Modena.