Holy See of the East Seat of the Major Archiepiscopal Curia is in Catholicate Centre, Trivandrum, Kerala, India. The Chaldean Catholic Church is a part of the Eastern Rite Churches under the patronage of Pope Francis of Rome and under the leadership of the Patriarch, Louis Raphael I Sako. Holy See of the East Holy See of the East is an honorary name of the sees of a number of Christian churches in the Middle East and India. The Head & Father of the Marthoma Nazrani Church and the Gate of All India is commonly known as the successor to the Holy Apostolic See of
Holy See former Secretary for Relations with States, said that the Vatican City is a "minuscule support-state that guarantees the spiritual freedom of the Pope with the minimum territory". The Holy See, not the Vatican City, maintains diplomatic relations with states. Foreign embassies are accredited to the Holy See, not to the Vatican City, and it is the Holy See that establishes treaties and concordats with other sovereign entities. When necessary, the Holy See will enter a treaty on behalf of the Vatican City. Under the terms of the Lateran Treaty, the Holy See has extraterritorial authority over various sites in Rome