So I was googling something and saw that the Russian localization of the game does not call the brothers:
Джейкоб (Jacob) Джозеф (Joseph) Джон (John)
but instead uses the Slavic biblical variations of the names
Иаков (Iakov) Иосиф (Iosif) Иоанн (Ioann)
And I realized that the same can be done in Armenian. Thus, I present to you the Seedian family:
Հակոբոս (Hakobos) Հովսեփ (Hovsep) Հովհաննես (Hovhannes)
Among these three, the biblical and modern forms are the same except for Hakobos vs Hakob