For 10 points, name this empire whose rulers lost the ability to appoint patriarchs in 1453 when Constantinople fell.
A "great" book of hours produced in this empire prescribes ending the day with a typica when liturgy is not performed. A set of religious rules [emphasize] named for this empire require that incense be distributed at the beginning of all-night vigils; those rules require forgoing dairy and eggs, [emphasize] as well as meat, during the four great fasts. In an incident in this empire, a scholar named Barlaam accused others of heresy for defending the mystical practice of (*) hesychasm [HEZ-ih-KAZ-um]. The Christian "rite" named for this empire includes the feast of the Dormition and is used in the churches of Antioch, Georgia, Serbia, and Russia. For 10 points, name this empire whose rulers lost the ability to appoint patriarchs in 1453 when Constantinople fell.
A "great" book of hours produced in this empire prescribes ending the day with a typica when liturgy is not performed.
Byzantine Empire [accept Eastern Roman empire; accept Byzantine rite; prompt on Greek empire; prompt on Roman empire for historical purposes, but it’s almost always called “Greek Rite” or “Byzantine Rite”] &lt;WA, Rel&gt;