lasted without a single break till the patriarchate of Michael Cerularius. No hint of any quarrel between the two Churches did we find under Pope Formosus
Dvornik argues that the supposed post-Photian schism is historically unfounded, locating the genuine and definitive break only with Cerularius in the eleventh century, thereby dismantling the legend of an earlier, permanent rupture.
, The Photian Schism: History and Legend, 1948thesis