Sunday June 12th will mark the 400th anniversary of the dedication of the church of the Most Holy Trinity of the Pilgrims, (Santissima Trinità dei Pellegrini), which has been since 2009 the Roman Parish of the Fraternity of St Peter. To mark the occasion, the parish will welcome Archbishop Guido Pozzo, Secretary of the Pontifical Commission “Ecclesia Dei”, for the celebration of a Solemn Pontifical Mass at 11:00 a.m., followed as usual by refreshments in the parish hall.