Old french literature is a body of literary works written in the Old French language and its regional dialects, and concurrently, an academic field dedicated to its study. This field investigates the linguistic, formal, thematic, and historical dimensions of texts produced in the geographical areas corresponding to medieval France and surrounding regions during the Old French period (roughly 9th to 14th centuries). Research in this area employs philological methods to establish reliable texts, analyzes linguistic evolution, examines genre conventions (e.g., epics, romances, lyric poetry, drama), and interprets works within their specific socio-historical, political, and cultural contexts. Its significance lies in providing crucial insights into the development of the French language and European literary traditions, understanding medieval thought and society, and preserving and interpreting foundational texts of Western literature.