42Lastly, where the national court, on the one hand, is still unable to identify the place of domicile of the consumer and, on the other hand, also has no firm evidence to support the conclusion that the defendant is in fact domiciled outside the European Union, a situation in which Article 4 of Regulation No 44/2001 may be applicable, it is necessary to examine whether Article 16(2) of that regulation may be interpreted as meaning that, in a case such as that envisaged, the rule on jurisdiction of the courts of the Member State in which the consumer is domiciled, laid down in the latter provision, also covers the consumer’s last known domicile.