Pope John the merciful and Isaac. The relationship between the Muslim administration and the Papacy. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related You Might Also Like Episode 36. Prelude to Justianian December 1, 2018 Episode 21 – Theophilus of Alexandria July 29, 2018 Episode 55. Poisoned Figs April 28, 2019