Giuseppe Pecci
1807–1890 (age 83)
Biography
Giuseppe Pecci (13 December 1807 – 8 February 1890) was a Jesuit Thomist theologian, whose younger brother, Gioacchino, became Pope Leo XIII and appointed him a cardinal. The Neo-Thomist revival, which Pecci and Leo XIII originated in 1879, remained the leading papal philosophy until Vatican II. He was the last papal relative elevated to cardinal.