In the paper the author attempts to present the origin and development of the appellate juris-diction of the House of Lords. The analysis focuses on the presentation of the sources and scope of judicial powers held by the parliaments of the kingdoms that have become part of the United King-dom. Theauthor subsequently discussed ideas behind the regulation of separate legal systems and judicatures as in the Act of Union of 1707. The final part of the analysis is a presentation of the most important aspects of the House of Lords appellate jurisdiction in the period before the establishment of the Supreme Court of the United Kingdom.
