When is the Feast Day of St. Francis Xavier?

Saint Francis Xavier, S.J. (born Francisco de Jasso y Azpilicueta, in Latin Sanctus Franciscus Xaverius, 7 April 1506 – 3 December 1552), was a Navarrese Basque Roman Catholic missionary, born in Javier (Xavier in Navarro-Aragonese or Xabier in Basque), Kingdom of Navarre (present day Spain), and a co-founder of the Society of Jesus. He was a companion of Saint Ignatius of Loyola and one of the first seven Jesuits who took vows of poverty and chastity at Montmartre, Paris in 1534. He led an extensive mission into Asia, mainly in the Portuguese Empire of the time and was influential in evangelization work, most notably in India.

He was beatified by Pope Paul V on 25 October 1619 and canonized by Pope Gregory XV on 12 March 1622. In 1624 he was made co-patron of Navarre alongside Santiago. Known as the "Apostle of the Indies," and the "Apostle of Japan", he is considered to be one of the greatest missionaries since Saint Paul. In 1927, Pope Pius XI published the decree "Apostolicorum in Missionibus" naming Saint Francis Xavier, along with Saint Thérèse of Lisieux, co-patron of all foreign missions. He is now co-patron saint of Navarre with San Fermin. The Day of Navarre in Spain marks the anniversary of Saint Francis Xavier's death, on 3 December 1552.