Σάνιας was the son of unknown parents. The date and place of his birth have not been found.
His wife was Aλίκη Nικολαΐδη. They were married, but the date and place have not been found. Their three known children were Mπόρις (1968-?), Λιούμπα (1963-?) and Λουντμίλα (1965-?).