Knock Shrine is the site of of an apparition of Mary, the Mother of God; St. Joseph, her spouse; and St. John the Evangelist in 1879. / Geyo John|Wikimedia|CC BY-SA 3.0Washington D.C., Apr 13, 2023 / 13:00 pm (CNA).During President Joe Biden's four-day trip to Ireland, he plans to visit Our Lady of Knock in Knock, County Mayo, which witnesses claim was the site of an apparition of Mary, the Mother of God; St. Joseph, her spouse; and St. John the Evangelist in 1879.Biden, who is the nation's second Catholic president, will be the first American president to visit the shrine. He intends to visit the site on Friday, April 14, on his last day in Ireland. He will then visit St. Muredach's Cathedral in Ballina, where he will give an address. "We are delighted to welcome President Joe Biden to Knock Shrine," Father Richard Gibbons, the rector of the shrine, said in a statement. "This is a huge honor and will be the first visit of a U.S. president to Knock Shrine," ...