What is "demandatam"

'Demandatam 'coelitus humilitati nostrae is an encyclical, promulgated by Pope Benedict XIV on December 24, 1743, about the Melkite Greek Catholic Church. It is addressed to the Patriarch of Antioch Cyril VI Tanas and to all Melkite bishops under his jurisdiction, and is generally not considered ex cathedra. The subject of this encyclical is the full preservation of the Byzantine Rite in the Melkite Greek Catholic Church.