Pope Gregory VII (1 jan 1073 ano – 1 jan 1085 ano)
Descrição:
 Following St. Augustine's "Just War" doctrine, developed the concept of "penitential warfare," whereby warfare was justified when performed in the service and defense of the Church and the faith. He offered absolution to those who died fighting for the Cross in the reconquest of Spain. 
Adicionado na linha do tempo:
Data:
1 jan 1073 ano
1 jan 1085 ano
 ~ 12 years