Ammon News - An estimated 250,000 pilgrims and a host of world leaders and royals, including the US vice-president, JD Vance, the Ukrainian president, Volodymyr Zelenskyy; Canadian prime minister, Mark Carney, and Britain’s Prince Edward, are expected to attend St Peter’s Square for the inaugural mass of Pope Leo XIV.

The service, which begins on Sunday at 10am local time, marks the official start of the papacy of the first US pontiff in the history of the Roman Catholic church.

The Chicago-born cardinal Robert Prevost, 69, was elected to succeed the late Pope Francis earlier this month after a conclave that lasted less than 26 hours.

Other world leaders attending include the Israeli president, Isaac Herzog, the Argentinian president, Javier Milei, and the Australian prime minister, Anthony Albanese.

As is tradition for an inaugural papal Sunday mass, Leo is expected to arrive in St Peter’s Square aboard a popemobile and spend some time greeting the crowd.

Alongside a procession of cardinals, the pope then enters St Peter’s Basilica, where he will receive two gifts that symbolise the papacy.

The first is a gold signet fisherman’s ring, which is named in honour of St Peter, a fisher who was the first pope. The ring represents the beginning and end of a papacy, and when a pontiff dies, it is destroyed by a senior cardinal. Until 1842, the ring was used to seal official documents signed by the pope.

The second gift is a lamb’s wool pallium, which symbolises the pope’s role as a shepherd, and is draped over his shoulders before the mass begins. The Guardian