Pope Leo XIV has affirmed core Catholic teaching on marriage and the unborn in his first meeting with the ambassadors accredited to the Holy See. He said Friday the family is founded on the "stable union between a man and a woman" and that the unborn and elderly enjoy dignity as God's creatures. Leo also called for reviving multilateral diplomacy and promoting dialogue between religions in the search for peace. The encounter with the Vatican diplomatic corps is one of the protocol requirements after a conclave, allowing a new pope to greet representatives of world governments ahead of his formal installation Mass this Sunday.