Opinion of Advocate General Campos Sánchez-Bordona delivered on 8 July 2021.#IB v FA.#Request for a preliminary ruling from the Cour d'appel de Paris.#Reference for a preliminary ruling – Judicial cooperation in civil matters – Regulation (EC) No 2201/2003 – Jurisdiction to hear divorce applications – Article 3(1)(a) – ‘Habitual residence’ of an applicant.#Case C-289/20.