An independent pan-national group of religious militants who seek to protect holy sites throughout Eorzea sounds fairly reasonable. Tying this group to Ishgard specifically seems rather pointlessly limiting. That's not to say people of Ishgardian origin could not or would not participate, simply that the Holy See has proven to be an extremely monolithic entity with an exacting sense of order among its classes and organizations.
V'aleera's Wiki - https://wiki.ffxiv-roleplayers.com/pages...eera_Lhuil
V'aleera's Tumblr - valeeralhuil.tumblr.com
V'aleera's Tumblr - valeeralhuil.tumblr.com