German-language publication entitled the Genealogisches Handbuch des Adels (GHdA) - (Genealogical Handbook of Nobility). Like its Gotha predecessor it was divided into subsets (Princely Houses, Comital Houses, Baronial Houses, Noble Houses); the Fürstliche Häuser (Princely Houses) subset is largely equivalent to the German language Gothaischer Hofkalender and its Fürstliche Häuser volume which was published by Perthes, or sections 1, 2 and 3 of the Almanach de Gotha. The book series produced several volumes of all sections each year, often containing new, first-time post-war entries, with the respective families being updated about once every 10 to 20 years. In 2013 the publisher Starke Verlag ceased to continue to publish new books in this series after a contract termination by the author. Instead the Gothaisches Genealogisches Handbuch''' (GGH) − (Gothaic Genealogical Handbook) continues the annual publication of the substantially same content as GHdA since 2015. Its subset Fürstliche Häuser (Princely Houses, the red volumes) continues with the publication of the genealogies of the European royal, princely and ducal houses, divided into the three sections as previously with Gotha and GHdA, but focuses on their current family members and refers to older volumes of the latter publications with regard to generations that are longer in the past. The publisher and editor of the new GGH publication is the Verlag des Deutschen Adelsarchivs (publishing company of the German Nobility Archive). This archive of the Union of German nobility associations has always been the author of both GHdA and GGH. In contentious questions, the German Nobility Rights Committee of this union decides. However, no single volume of the Fürstliche Häuser of GHdA or GGH includes all the families of German and European royal, princely and ducal families that were annually included in the Hofkalender or Almanach de Gotha. Rather, they are recorded alternately in successive volumes. Therefore it is necessary to use multiple volumes to trace all of Europe's royal families. With regard to the current information, the archive works together with the respective family heads and is dependent on the cooperation and consent of the families for reasons of information privacy. Because of this required legwork, not that many princely and ducal houses of France, the UK, Italy and other countries are included, while the German ones, as well as the ruling and formerly ruling royal families of Europe are covered quite reliably. London publication (since 1998) In 1992 the family of Justus Perthes