[2] In 1481 John V redeemed Saxe-Lauenburg's exclave Land of Hadeln, which had been pawned to Hamburg as security for a credit of 3,000 Rhenish guilders since 1407.

[4] Having advanced to regent Magnus, who in 1484 had failed to conquer the rich Land of Wursten, a de facto autonomous region of free Frisian peasants in a North Sea marsh at the Weser estuary, won his father and Henry IV the Elder of Brunswick and Lunenburg, Prince of Wolfenbüttel on 24 November 1498 as allies in a second attempt to conquer Wursten.

[4] By early December 1499 Prince-Archbishop Johann Rode of Bremen converted Henry IV to their column so that Magnus lacked support.

[7] Mediated by Eric I of Brunswick and Lunenburg, Prince of Calenberg and Henry IV, Rode and Magnus for his father John V concluded peace on 20 January 1500.

[7] Hadeln was restored to Magnus, while the Wursteners rendered homage to Rode on 18 August, thus in the end little had changed as compared with the status quo ante.