Catholicos Stephen II (Ստեփանոս Բ Ռշտունի) was the 59th Catholicos-Patriarch of the Armenian Apostolic Church between 929 and 930.
He came from the prominent Rshtuni family which is native to the region of Rshtunik by the southern shore of Lake Van (often associated with the island stronghold of Aghtamar), Stephen held the office for about a single year during a long period of regional power shifts among the competing Armenian kingdoms.
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