Unless
1. immediately applicable rules of the European Union in their respective pertaining version, particularly
a) the Regulation (EC) No. 864/2007 of the European Parliament and of the Council of 11 July 2007 on the law applicable to non-contractual obligations (Rome II),
b) the Regulation (EC) No. 593/2008 of the European Parliament and of the Council of 17 June 2008 on the law applicable to contractual obligations (Rome I),
c) Article 15 of the Regulation 4/2009 of the Council of 18 December 2008 on jurisdiction, applicable law, recognition and enforcement of decisions and cooperation in matters relating to maintenance obligations, and
d) the Regulation (EU) No. 1259/2010 of the Council of 20 December 2010 implementing enhanced cooperation in the area of the law applicable to divorce and legal separation,
e) the Regulation (EU) No 650/2012 of the European Parliament and of the Council of 4 July 2012 on jurisdiction, applicable law, recognition and enforcement of decisions and acceptance and enforcement of authentic instruments in matters of succession and on the creation of a European Certificate of Succession,
f) Council Regulation (EU) 2016/1103 of 24 June 2016 implementing enhanced cooperation in the area of jurisdiction, applicable law and the recognition and enforcement of decisions in matters of matrimonial property regimes
g) Council Regulation (EU) 2016/1104 of 24 June 2016 implementing enhanced cooperation in the area of jurisdiction, applicable law and the recognition and enforcement of decisions in matters of the property consequences of registered partnerships, or
2. rules in international conventions, insofar as they have become directly applicable in national law,
are relevant, the applicable law is to be determined, where the facts of a case have a connection with a foreign State, by the provisions of this chapter (private international law).