 He hailed from a petty Lithuanian noble family from the area of Eišiškės that possibly used the Działosza coat of arms (image similar to Działosza was added next to his name in a registry at the University of Königsberg).His date of birth is unknown.In 1726, Michael Lilienthal wrote that Rapolionis died at age 60 which would put his date of birth around 1485.