These Eastern Rite churches are Catholic and do not belong to the [[Eastern Orthodox Church]] that split from the Catholic Church during the Great Schism of 1054.
"The Roman Catholic" can be opposed to "Church historically regarded Protestant." Protestants regard themselves Christianity as Christiansheretical, but Catholics do not regard Protestants as authentically within the church established by Peterthat is, and do not regard Protestant ministers as being validly ordainedagainst Church doctrine. Protestants would of course challenge However, thischanged in the 1960's when Pope John XXIII called the Second Vatican Council, but nevertheless agree that there is a where the doors of the Church were opened wide separation between Protestant denominations , and the churches that refer Protestants referred to themselves as "Catholicour separated brethren". This was an exciting period for Catholics and Protestants alike as moves were made to bring the separated churches back together."
The Anglican Church (Episcopalian in the United States) occupies an odd situation, because it encompasses within it factions ("Low Church") that emphasize its Protestant aspects and factions ("High Church") that emphasize its Catholic aspects. Anglo-Catholics regard the Anglican church as part of the Catholic Church, and in the unbroken line of the Apostolic Succession. The Roman Catholic Church and the Eastern branches take a position that could be described as saying that the Anglican Church is almost but not quite Catholic. There have long been unification overtures, and Anglican priests who wish to adopt Catholic Holy Orders are often provided with an abbreviated path to that goal.