In a historic first, Britain’s King Charles and Pope Leo prayed together at the Vatican’s Sistine Chapel on Thursday, marking the first joint worship between an English monarch and a Catholic pope since King Henry VIII broke from Rome in 1534.

Pope Leo XIV, history’s first North American pope, celebrated his first Mass as pontiff on Friday, presiding in the Sistine Chapel with the cardinals who elected him to succeed Pope Francis and follow in his social justice-minded footsteps.

Black smoke rose once again from the Sistine Chapel chimney on Thursday, signaling that the cardinals participating in the papal conclave have not yet selected a successor to Pope Francis.