Pontifex Maximus (Dion. Hal. 3.36.4). Münzer (RE) associates this Papirius with the Sex. Papirius named in Pomponius, Dig. 1.2.2.2, as the author of the Ius Papirianum, and P. Papirius (RE 23; Dig. 1.2.2.36), who collected the laws of the kings. (Broughton MRR I)