This article presents the Polish Private International Law of February 4, 2011, which governs the applicability of law to private legal relationships connected with more than one state. It outlines general provisions including the determination of applicable law for individuals with multiple nationalities or unknown nationality. The law also covers legal capacity, representation, contractual and non-contractual obligations, property law, intellectual property, family matters (marriage, parent-child relations, adoption, guardianship), and inheritance. Key principles include the closest connection rule and public policy exceptions. The text also details amendments to various existing Polish laws.