According to the Lancelot-Grail Cycle, Elyan eventually became Emperor of Constantinople himself.

In February 1215, Andrew married Yolanda, the niece of Henry I, the Emperor of Constantinople.

Many served as mercenaries, and the famed Varangian Guard, serving the Emperor of Constantinople was drawn principally of Scandinavian warriors.

Baldwin II becomes Latin Emperor of Constantinople.

Antonia's only other sibling by her father's marriage to Marguerite was James of Baux, the last Latin Emperor of Constantinople.

He was the nephew of Constantine XI Palaiologos, the last Byzantine Emperor of Constantinople.

He lived in Rome, styling himself Imperator Constantinopolitanus ("Emperor of Constantinople").

Emperor of Constantinople can refer to:

It was said that Pope Callixtus III wanted to make him Emperor of Constantinople after its recovering from the Turks.

Capetian House of Courtenay - Latin Emperors of Constantinople (1217-1283)