like Worringen, Zons, and Volmarstein. The Duchy of Limburg was occupied Duke John I of Brabant. As a consequence of his defeat, on 18 June 1288 he had to recognize in a contract 'the sovereignty of the city' of Cologne. However on 18 January 1290, Pope Nicholas IV relieved him of all the promises which he had given to Cologne. On 31 January the Pope even called for the Archbishops of Mainz and Trier to help Siegfried recover the Cologne Archbishopric’s possessions. After his release, the Elector preferred to make his residence in Bonn. The archbishop's mint in Cologne ceased operations and Siegfried made Bonn his new mint city. As a challenge to Cologne, he chose the name “Verona” for Bonn, and issued his coins with the inscription "Beata Verona Vince” (“You, Happy Verona will win"). In 1286 Siegfrid introduced the first town constitution in Bonn. It specified that the distinguished citizens (oppidani maiores) should choose twelve suitable men, the best the city had to offer, whose decisions would be binding for the whole citizenry. In the upcoming election of the King of Germany in 1292, Siegfried favored Count Adolf of Nassau, his brother-in-law, to enable the Archbishop to recover from his vast concessions. In the Treaty of Andernach on 27 April 1292, Adolf of Nassau agreed to all of Siegfried’s demands, including the transfer to the Archbishopric of imperial cities like Dortmund and Duisburg, imperial castles and estates, and the Vogtship of Essen. On 5 May 1292, Siegfried saw to the successful election of Adolf of Nassau, and crowned him on 24 June 1292 in Aachen. Siegfrieds restoration policy, however, was doomed to fail, because of the opposition of the "Coalition of Worringen." He could neither restore the link between his Rhenish and Westphalian possessions, nor re-integrate the city of Cologne into the Diocese. Because of the non-fulfillment of the requirements of the Treaty of Andernach, the kingdom of Adolf of Nassau then collapsed as well. Siegfried died on 7 April 1297 in Bonn and was buried in the Bonn Minster. References Archbishop-Electors of Cologne Siegfried 01 13th-century Roman Catholic archbishops in the Holy Roman Empire 1297 deaths Year of birth unknown