It was a ROCOR parish. I still drop in there occasionally to say hi, venerate the icons, etc. I plan on attending Vespers and the Divine Liturgy there sometime this spring too, because I love the way they celebrate the Liturgy there.
Here’s a good general resource:
https://east2west.org
And here’s a good, more in depth resource, especially for defending the Papacy:
http://www.catholicbridge.com/orthodox/pope_bishop_of_rome_primacy.php
http://www.catholicbridge.com/orthodox/pope_orthodox_church_fathers.php
Catholicbridge is an especially good resource.
Here’s some quotes from early Eastern Church Fathers about the papacy. Ask yourself - do these quotes align with the Catholic understanding of the Papacy?
“How much more in the case of the clergy and church of the Romans, which from old until now presides over all the churches which are under the sun? Having surely received this canonically, as well as from councils and the apostles, as from the princes of the latter (Peter & Paul), and being numbered in their company, she is subject to no writings or issues in synodical documents, on account of the eminence of her pontificate …even as in all these things all are equally subject to her (the Church of Rome) according to sacerodotal law. And so when, without fear, but with all holy and becoming confidence, those ministers (the Popes) are of the truly firm and immovable rock, that is of the most great and Apostolic Church of Rome.”
St. Maximus the Confessor, in J.B. Mansi, ed. Amplissima Collectio Conciliorum, vol. 10
“Because of his primacy, the Pontiff of Rome is not required to attend an Ecumenical Council; but without his participation, manifested by sending some subordinates, every Ecumenical Council is as non-existant, for it is he who presides over the Council.”
St. Methodius —N. Brian-Chaninov, The Russian Church (1931), 46; cited by Butler, Church and Infallibility, 210) (Upon This Rock (San Francisco: Ignatius, 1999), p. 177).
“It is not true, as this Canon states, that the holy Fathers gave the primacy to old Rome because it was the capital of the Empire; it is from on high, from divine grace, that this primacy drew its origin. Because of the intensity of his faith Peter, the first of the Apostles, was addressed in these words by our Lord Jesus Christ himself ‘Peter, lovest thou me? Feed my sheep’. That is why in hierarchical order Rome holds the pre-eminent place and is the first See. That is why the leges of old Rome are eternally immovable, and that is the view of all the Churches” (Ibid)