Independent Catholic Churches is the name for a few Christian churches which say that they have the traditions of the Catholic Church, but who are not recognised by the Holy See. Almost all of them say that their bishops have apostolic succession, that is that their legitimacy comes from an apostle. The first of these churches was the Old Catholic Church, who did not agree that the pope was infallible, in religious matters. This was agreed at the First Vatican Council in 1870. Most of the independent Catholic churches split from the Old Catholic church. A notable exception is the Society of St. Pius X, a grouping of traditionalist priests, founded in the 1970s.