Editing Pope Gregory VII (section)

===Claims of Papal sovereignty===
In the case of several countries, Gregory VII tried to establish a claim of sovereignty on the part of the Papacy, and to secure the recognition of its self-asserted rights of possession. On the ground of "immemorial usage", [[Medieval Corsica|Corsica]] and [[Giudicati|Sardinia]] were assumed to belong to the Roman Church. [[Reconquista|Spain]], [[Kingdom of Hungary in the Middle Ages|Hungary]] and [[Kingdom of Croatia (medieval)|Croatia]] were also claimed as her property, and an attempt was made to induce the king of [[History of Denmark#Christianity, expansion and the establishment of the Kingdom of Denmark|Denmark]] to hold his realm as a fief from the pope.<ref name="EB"/>

In his treatment of ecclesiastical policy and ecclesiastical reform, Gregory did not stand alone, but found powerful support: in England Archbishop [[Lanfranc]] of [[Canterbury]] stood closest to him; in France his champion was Bishop [[Hugo of Dié|Hugh de Dié]], who afterwards became [[Archbishop of Lyon]].<ref name="EB"/><ref>Benedictines of S. Maur (editors), ''Gallia christiana'' IV (Paris 1728), pp. 97–109.</ref>