Article 1751 of the French Civil Code
The right to the lease of premises, of a non-professional or non-commercial nature, which is actually used as a dwelling by two spouses, whatever their matrimonial regime and notwithstanding any agreement to the contrary and even if the lease was entered into before the marriage, or by two partners bound by a civil solidarity pact, provided that the partners make the request jointly, is deemed to belong to both spouses…