Now that the Prime Minister’s baby Wilfred has been given a Catholic baptism at Westminster Cathedral, it may be time for the parents to consider another sacrament: marriage. And what baby Wilf’s baptism reminds us is that there’s no reason why the wedding shouldn’t be a Catholic one. Both bride and groom are baptised Catholics. The PM’s first marriage, a golden affair, to his lovely university girlfriend, Allegra Mostyn Owen, in 1987, was not in a Catholic Church. Neither was his second, to Marina Wheeler. And within the rules that determine what counts as a valid marriage for a Catholic, is the requirement that the ceremony be in a Catholic Church, with a priest presiding, unless you obtain express permission to have it elsewhere. In other words, so far as the Church is concerned, both parties are free to enter marriage.