The term "Comnenus" refers to a prominent Byzantine noble family that rose to power during the 11th and 12th centuries. The most notable member of this family was Alexios I Comnenus, who became Emperor of the Byzantine Empire in 1081. His reign marked a significant period of military and administrative reform, helping to stabilize the empire during a time of crisis. The Comnenus dynasty is also known for its contributions to Byzantine culture and politics. Under their rule, the empire experienced a revival in art and literature, as well as increased diplomatic relations with Western Europe. The family's legacy is often associated with the First Crusade and the complex interactions between the Byzantine Empire and the Latin West.