The purpose of the following commentary is to address the relative question of the applicable law to the formal validity of a mortis causa provision to the basis of the July Fourth, 2012 Regulation 650/2012 (Regulation 650/2012 or Regulation) of the European Parliament and Council, concerning the competence, applicable law, recognition and execution of resoluitions, acceptance and execution of public documents in the field of mortis causa inheritance and to the creation of a European certificate of inheritance