1585 papal conclave
The 1585 papal conclave (21–24 April), convoked after the death of Pope Gregory XIII, elected Cardinal Felice Peretti Montalto (O.F.M.Conv), who took the name of Pope Sixtus V. Forty-two of the sixty cardinals participated in the conclave. The absence of thirty percent of the cardinalate makes this conclave one of the most sparsely attended in the history of the modern Roman Catholic Church. Fourteen of Gregory XIII's thirty cardinals failed to attend, a startlingly high number.