The title was conferred in recognition of Henry's book Assertio Septem Sacramentorum (Defense of the Seven Sacraments), which defended the sacramental nature of marriage and the supremacy of the Pope.
Gelar tersebut diberikan dalam rangka menghargai buku Henry Assertio Septem Sacramentorum (Pembelaan atas Tujuh Sakramen), yang membela sakramen pernikahan dan supremasi Paus.