Algeria–Holy See relations
Although Islam is the state religion of Algeria, the Holy See has maintained a comparatively good relationship with the Algerian authorities, with Léon-Étienne Duval being famously recognized as the "bishop of Muslims" after the departure of French colonists.
Christianity in Algeria
Conversions to Christianity have been most common in Kabylie, especially in the wilaya of Tizi-Ouzou. In Tizi-Ouzou, the proportion of Christians has been estimated to be between 1% and 5%. Christians have at times been subjected to religiously motivated attacks. In 1996, Pierre Claverie, bishop of Oran, was assassinated by terrorists. This murder occurred soon after that of seven monks of the Trappistes of Tibérine, and of six nuns. This terrorist act was part of a general trend of violence during the Algerian Civil War in the 1990s, commonly known as the Black Decade. During this time, between 100,000 and 200,000 Algerians lost their lives.