This uprooting raises the question of why Calvinus was permitted to displace such a venerable shrine . The Church Fathers associate Mutunus with groupings of other deities that are assumed to be based on the lost theological works of Varro . Through examining these connections , Robert Palmer concluded that the old cult of Mutunus was merged with that of Father Liber , who was variously identified with or shared attributes with Jupiter , Bacchus , and Lampsacene Priapus . Palmer further conjectured that it was Mutunus , in the form of Liber , to whom Julius Caesar made sacrifice on the day of his assassination , receiving the ill omens that the conspirator Decimus Brutus urged him to ignore . Caesar had previously celebrated his victory at the Battle of Munda on the Liberalia , or festival of Liber held March 17 , and he visited the house of the '' pontifex '' Calvinus on the Ides of March , near the archaic shrine of Mutunus-Liber . In Palmer 's view , the evident ill favor of the god gave Augustus license to reform the cult during his program of religious revivalism that often disguised radical innovations . The god was then Hellenized as Bacchus Lyaeus
day of his assassination
Assassination of Julius Caesar
Mutunus Tutunus