My aunt has died. She made several wills. In a will dated 2018, she left me her house and the furniture in it. In a second will dated 2019, she left her furniture to her sister. Will I inherit the furniture in the house?

No. The most recent will, even if it does not expressly revoke previous wills, revokes earlier provisions that are incompatible with or contrary to the new provisions (Article 1036 of the French Civil Code).