When Archbishop James Checchio kneels before Pope Leo XIV in St. Peter’s Basilica Monday during the Vatican’s annual Mass for the Feast of Sts. Peter and Paul, it will be a family affair. Checchio, who left for Rome this week, will join other new archbishops to receive the “pallium” from the pope, a white, 2-inch-wide band woven from lamb’s wool and decorated with six black crosses that Checchio and the other archbishops will wear over their shoulders during important Masses.