Pope Pius X ( Latin: Pius PP. X) (June 2 1835 — August 20 1914), born Giuseppe Melchiorre Sarto, was Pope from 1903 to 1914, succeeding Pope Leo XIII (1878–1903). He was the first Pope since the Counter-Reformation Pope Pius V (1566–72) to be canonized. Despite this, the legacy of Pius X's pontificate remains controversial among socialists, liberals and modernists.