why does the pope choose a new name

The Pope chooses a new name as a longstanding tradition that symbolizes a new mission and identity upon assuming the papacy. This practice, originating in the early Middle Ages, reflects the idea of a "second birth" into a new role, marking a departure from the pope's birth name and signaling continuity or a particular inspirational figure from church history. The chosen name often honors previous popes or saints whom the new pope admires or wishes to emulate, and can also indicate the direction or priorities of his papacy. For example, Pope Francis chose his name to reflect St. Francis of Assisi's commitment to peace, nature, and care for the poor. This name change became customary starting around the 11th century and has become an integral part of the papal tradition since then, with only a few exceptions over the centuries.