VATICAN CITY (AP) — Two pontiffs, each wearing white and each called "pope" living a few yards (meters) apart, with the same archbishop serving both.

The Vatican's announcement Tuesday that Pope Benedict XVI will be known as "emeritus pope" in his retirement, called "Your Holiness" as an honorific and continue to wear the white cassock associated with the papacy fueled renewed questions about potential conflicts arising from the peculiar reality soon to face the Catholic Church: having one reigning and one retired pope.

Benedict's title and what he would wear have been a major source of speculation ever since the 85-year-old pontiff stunned the world by announcing he would resign, the first pope to do so in 600 years.