Festival de la Poésie Hassaniya in Nouakchott
No festival confirmed under the exact name Festival de la Poesie Hassaniya distinct from Nouakchott's other documented poetry events. Nouakchott hosts an Arabic poetry festival at the House of Poetry, Beit Chi-ir, organized with Sharjah, and Mauritania's poetic tradition is practiced across Hassaniya Arabic, Pulaar, Soninke, Wolof, and French, but a separately branded Hassaniya-specific festival was not independently verified.
Search results did not turn up independent confirmation of a festival formally and distinctly named Festival de la Poesie Hassaniya, separate from Nouakchott's other documented poetry institutions.