The antipope of Mar-a-Lago, whose adherents have embraced him and his crusade with a religious, even cultlike ardor, got out of his shiny, fortified black Suburban, clapped, pointed and waved from ...

Similarly, even though there was Pope Benedict XVI in the 2000s, there have only been 15 legitimate popes named Benedict, as the tenth was declared an antipope.

An antipope is a person who makes a competing claim to the papacy, in opposition to the legitimately elected pope.

Historians know de Luna as an “antipope” — i.e., someone who makes his mark in history by asserting an unsupported claim to being pope. One might say that de Luna’s pride went to his head.

Similarly, even though there was Pope Benedict XVI in the 2000s, there have only been 15 legitimate popes named Benedict, as the tenth was declared an antipope.