Asociación Polaca de Fútbol
In 1947 he was a chairman of Silesian Football Association (Śląski Związek Piłki Nożnej), a branch of Polish Football Association. Since 1959 Synowiec lived in Kędzierzyn. He died on November 7, 1960 in Kędzierzyn and was buried on the Rakowicki Cemetery in Kraków.