Father Vladimir Guettée (1816-1892), was a renowned French historian and Roman Catholic priest who became convinced that the Orthodox Church was the true Church. In the 1860s, he converted to Orthodoxy and took the name Father Vladimir. With the promulgation of the dogma of the Immaculate Conception in 1854, Guettée began publication of The Catholic Review, a journal in which he tried to refute this error. As he himself later recalled, the issue forced him to reexamine the grounds for the Roman Catholic teaching regarding the papacy. "Here I began to look at the papacy first-hand. ... And I saw it for what it really was. ... I re-read the words of the most erudite defenders of the papacy, and I became convinced that it is based neither on Holy Scripture nor on the Tradition of the Church Universal." Increasingly disaffected by Roman Catholicism, Guettée would no doubt have wandered about in limbo for some time were it not for a providential encounter with Fr. Joseph Vassiliev, who served the chapel in the Russian embassy on rue Grenelle, and who assisted Guettée in his move towards Orthodoxy.