While Jack and Ennis (both Protestants) herded sheep up on Brokeback, Pope John XXIII passed away in June of 1963.
Pope John XXIII, diagnosed with stomach cancer in September 1962, hinted at his frailty in April 1963: "That which happens to all men perhaps will happen soon to the Pope who speaks to you today." However he served as Pope until his
dying day. On May 25, 1963, the Pope suffered another hemorrhage and required blood transfusions, but peritonitis soon set in, resulting in his death at 7:49 p.m. (local time) on June 3 at the age of 81. He was buried on June 6, ending a reign of four years, seven months and six days.

[Wikipedia]