catholicize , also: Catholicize
catholicise BrE

Between 1670-1672, protestant pursuits and fightings were taking place to forcefully catholicize people, however, the villagers remained Protestant.

He viewed it as an excellent opportunity to expand the Commonwealth's territory and sphere of influence, with hopes that the eventual outcome of the war would Catholicize Orthodox Russia (in this he was strongly supported by the Pope) and enable him to defeat Sweden.

One of the most bizarre of Giménez Caballero's actions was perhaps his unsuccessful attempt to marry Primo de Rivera's sister, Pilar, to Adolf Hitler, as a way to soften and catholicise the latter.