Tarvydas Rybasyn is the son of Gunther the Smith, and trained with him throughout his youth. Sameen selected him to become custos to her filia Paula Vedunia, however, and he trained accordingly, although he still enjoys working with iron when he can. He and Paula wed in 1260 AD.

Tarvydas speaks Czech, Latin, accented Guan, and some German. He resides with his wife Paula Vedunia Ex Miscellanea in her Sanctum on Fortunia.