A total of 11 non-gouty popes out of 264 (4.1%) died of kidney stones (very probably calcium stones) between the years 34-2005 AD. The prevalence of kidney stones was lower than expected on the basis of recent population-based data. The discrepancy might be due to the changing nutritional habits. Causes of death included acute kidney injury, chronic kidney disease, and stroke. The disease was highly recurrent in 9 of 11 (88.1%). Recurrences were observed 1 to 30 years after the first attack. Mean age at death was 63.1 years, much shorter than expected in popes. Clinically recurrent back-flank-groin pain emerged as a hallmark indicator of kidney stones in the narratives. It was sometimes associated with fever, hematuria, purulent urine and/or frequent urination and dysuria. Some popes were obese, sedentary, voracious and wine drinkers; others were lean, took long walks, ate frugal meals and practiced restraint when it came to drinking alcohol. They were cured with bed rest, diets, donkey milk, mineral waters, decongestant, purgatives, thermal baths, blood-letting, and surgery.