Which preposition to use with vinicius

for Occurrences 1%

[-25-] following year Marcus Vinicius for the second and Statilius Corvinus for the first time entered upon the office of consul.

in Occurrences 1%

About this same time Marcus Vinicius in making reprisals against the Celtæ, because they had arrested and destroyed Romans who had entered their country to have friendly dealings with them, himself gave the name of imperator to Augustus.

Which preposition to use with  vinicius