Multiple really. He chose Nald'thal because it was from his birth month, and he wasn't a follower of the twelve, being an outsider.
However, events and things led him to discover the twelve, and he began to follow Nald'thal's teachings a little bit more, actively selling his wares, and accumulating wealth.
Nowadays It's tied with Nald'thal and Byregot, as he is known as a smith more so than anything else. Azeyma is maybe up there to, as a shield maiden, but he's not much for the shield anymore. ^_^
TLDR: Nald'thal/Byregot, and Azeyma less so.
However, events and things led him to discover the twelve, and he began to follow Nald'thal's teachings a little bit more, actively selling his wares, and accumulating wealth.
Nowadays It's tied with Nald'thal and Byregot, as he is known as a smith more so than anything else. Azeyma is maybe up there to, as a shield maiden, but he's not much for the shield anymore. ^_^
TLDR: Nald'thal/Byregot, and Azeyma less so.