Voragine, Jacobus. The Life of Saint Valentine. In Legenda Aurea, compiled around 1275 Thurston, Herbert. St. Valentine. The Catholic Encyclopedia, Vol.15
教宗范倫(拉丁語:Valentinus PP.)是827年8月至9月在位的教宗。 "Pope Valentine" in the 1913 Catholic Encyclopedia from the 9th edition (1888) of an unnamed encyclopedia Vita