Charles de Foucauld, French priest and martyr (d. 1916)
Charles Eugène de Foucauld (Viscount of Foucauld, 15 September 1858 – 1 December 1916) was a cavalry officer in the French Army, then an explorer and geographer, and finally a Catholic priest and hermit who lived among the Tuareg in the Sahara in Algeria. He was assassinated in 1916 and is considered by the Church to be a martyr. His inspiration and writings led to the founding of the Little Brothers of Jesus among other religious congregations.

Orphaned at the age of six, Charles de Foucauld was brought up by his maternal grandfather, Colonel Beaudet de Morlet. He joined the Saint-Cyr Military Academy. Upon leaving the Academy he opted to join the cavalry. He thus went to the Saumur Cavalry School, where he was known for his childish sense of humour, whilst living a life of debauchery enabled by an inheritance he received after his grandfather's death. He was assigned to the 4th Chasseurs d'Afrique Regiment. At the age of twenty-three, he decided to resign in order to explore Morocco by impersonating a Jew. The quality of his works earned him a gold medal from the Société de Géographie, as well as fame following publication of his book "Reconnaissance au Maroc" (1888).

Once back in France, he rekindled his Catholic faith and joined the Cistercian Trappist order on 16 January 1890. Still with the Trappists, he then went to Syria. His quest of an even more radical ideal of poverty, altruism, and penitence, led him to leave the Trappists in order to become a hermit in 1897. He was then living in Palestine, writing his meditations that became the cornerstone of his spirituality.

Ordained in Viviers in 1901, he decided to settle in the Algerian Sahara at Béni Abbès. His ambition was to form a new congregation, but nobody joined him. He lived with the Berbers, adopting a new apostolic approach, preaching not through sermons, but through his example. In order to become more familiar with the Tuareg, he studied their culture for over twelve years, using a pseudonym to publish the first Tuareg–French dictionary. He collected hundreds of Tuareg poems (paying a few sous to anyone who would bring poems to his hermitage) which he translated into French. He censored nothing in the poems, and never changed anything that might not conform to Catholic morality. Charles de Foucauld's works are a reference point for the understanding of Tuareg culture.

On 1 December 1916, Charles de Foucauld was assassinated at his hermitage. He was quickly considered to be a martyr and was the object of veneration following the success of the biography written by René Bazin (1921). New religious congregations, spiritual families, and a renewal of eremitic life are inspired by Charles de Foucauld's life and writings.

His beatification process started in 1927 eleven years after his death. He was declared Venerable on 24 April 2001 by Pope John Paul II, then Blessed on 13 November 2005 by Pope Benedict XVI. On 27 May 2020, the Vatican announced that Pope Francis would declare de Foucauld a saint on 15 May 2022.