Answer
Provençal, the language Frederic Mistral primarily wrote in, is a Romance language originating in southern France. It shares similarities with Spanish, Italian, and Catalan. Mistral's literary contributions played a crucial role in revitalizing Provençal literature and culture in the late 19th century. His works showcased the linguistic richness and heritage of the region, gaining him international recognition and eventually the Nobel Prize in Literature in 1904.