Although Janus had no flamen, he was closely associated with the rex sacrorum who performed his sacrifices and took part in most of his rites: the "rex" held the first place in the ordo sacerdotum, hierarchy of priests. The flamen of Portunus performed the ritual greasing of the spear of the god Quirinus on 17 August, day of the Portunalia, on the same date that the temple of Janus in the Forum Holitorium had been consecrated by consul Gaius Duilius in 260 BC.