Franciszek became Podstoli of Braclaw since 1761, Borough Writer of Krzemieniec since 1764, Chamberlain of King Stanisław August Poniatowski since 1767, Podczaszy of Braclaw since 1771, Chorąży of Winnica since 1772, Chorąży of Braclaw since 1774, Great Miecznik of the Crown since 1775, Bracław Voivodeship deputy for the Great Sejm.
Tomicki was born in 1464 near Poznan as the son of Mikołaj of Tomice, a Chorąży from Poznań and Anny of Szamotuły.