Besides factors such as a common child, previous cohabitation and registration of the partnership, the family relationship between unmarried partners can be proven through any reliable means of proof to show the stable and long-term character of their relationship, for instance, correspondence, joint bills, bank accounts or ownership of real estate, etc.
Outre des éléments tels qu’un enfant commun, une cohabitation préalable et l’enregistrement du partenariat, tout autre moyen de preuve fiable démontrant la nature durable de la relation entre des partenaires non mariés (par exemple: correspondance, factures communes, comptes bancaires, propriété de biens immobiliers, etc.) peut servir à prouver l’existence de liens familiaux entre ceux-ci.