Fat pope, thin pope
"Fat pope, thin pope" is an adage in the Catholic Church describing not only a perceived physical trend but also that conclaves tend to counterbalance the preceding pope with one having different theological emphases. The accuracy of the adage has been debated, with both supporters and skeptics. It has also been used in non-papal contexts to refer to other perceived pendulum swings.
Phrase
The adage around papal conclaves has been attributed to Italians and has multiple phrasing, including "Always follow a fat pope with a skinny one", "A fat pope follows a thin one", "A thin pope follows a fat pope", and "After a fat pope comes a thin pope". It describes a perceived tendency for the cardinal electors to choose a candidate who counterbalances the previous pope, as if following a pendulum swing.In choosing a successor, cardinals are seen to focus on the perceived flaws of the previous pontiff, and select a candidate who remedies those flaws. A "combative" pope may be followed by a more amicable one, and a "politician" followed by a "priest". In the words of Miles Pattenden, a historian of the Catholic Church at Oxford University, the idea of the saying is that "the cardinals very often focus on what they didn't like about the previous Pope, all the things they thought were his faults and flaws, and they look for someone who remedies those." This phenomenon is especially said to be noticed in history after particularly long papacies, when the church is ready for change.
Accuracy
Pius IX's reign, marked by a "distrust of modernity", was followed by Leo XIII's focus on a more "activist faith", which was in turn followed by Pius X's fight against modernism. The "austere" and "aristocratic" Pius XII was followed by the "gregarious and seemingly unsophisticated" John XXIII. Similarly, the "progressive" Francis was seen as more left-wing following the "traditionalist" and "introverted" Benedict XVI, who in turn was seen as more right-wing than the preceding "charismatic" John Paul II. Some saw the election of Leo XIV as further confirming the adage, while others argued that Leo was in continuity with Francis.While the phrase is metaphorical, it has been literally true at times; the portly Pius IX was followed by the skinny Leo XIII, and the "jolly and jowly" John XXIII was preceded by the "gaunt" Pius XII and followed by the "thin" Paul VI. Some commentators observed that the adage is not true at all times or disputed the accuracy of the adage in theological terms. For instance, one argument is that Pius XI in fact continued the policies of Benedict XV, and similarly with Paul VI and John XXIII. Benedict XVI's papacy was also seen by some to be more of the same rather than a change; allegedly, left-wing bishops had assumed that John Paul II's successor would follow a pendulum swing to be more liberal, and were surprised by Benedict XVI's election. Both Father James J. Martin and Colm Flynn of the Catholic television network EWTN dismissed the adage, with Flynn observing that there was not much difference between Benedict XVI and Francis.