St Pius X
Pope St Pius X was born Giuseppe Melchiorre Sarto on 2 June 1835 in Riese, in the Veneto, the son of a village postman and one of ten children. Ordained in 1858, he served many years as a humble curate and parish priest before being named Bishop of Mantua (1884) and then Patriarch of Venice and cardinal (1893). He was elected pope on 4 August 1903, taking as the motto of his pontificate 'Instaurare omnia in Christo' — to restore all things in Christ.
His pontificate (1903–1914) was marked by traditional theology and a sweeping reform of liturgy, music, catechesis, and Church law. He restored Gregorian chant, promoted frequent and early Holy Communion, began the codification of canon law, and waged a determined campaign against the movement he called Modernism. Esteemed for personal holiness and pastoral simplicity, he died on 20 August 1914 as the First World War broke out, and was canonized by Pius XII in 1954.
If Tradition has a papal patron in the modern age, it is Giuseppe Sarto. He restored Gregorian chant as the Church’s own song (Tra le sollecitudini, 1903), crushed the ‘synthesis of all heresies’ with Pascendi (1907) and the Oath Against Modernism (1910), and made St Thomas Aquinas the master of every seminary. The very name of the society later founded to resist the post-conciliar rupture — the Society of St Pius X — is taken from him.
A friend of Tradition, then, in the fullest sense: doctrine guarded, the liturgy reverenced, the modern errors named and condemned. If one wishes to see what a traditional papacy looks like in action, one looks here.