Background
He was the second eldest son of John I of Werle and Sophie of Lindow-Ruppin.
He was the second eldest son of John I of Werle and Sophie of Lindow-Ruppin.
After Nicholas"s death in 1316 it was decided to divide the territory, and John took control over the part Werle-Güstrow and Nicholas"s son John III, took control over the part Werle-Goldberg. On 4 May 1326, King Christopher II of Denmark promised to invest John and Lord Henry II of Mecklenburg with the Principality of Rügeneral However, the Dukes of Pomerania took Rugen, leading to the Rügeneral War of Succession.
He reduced his debts by prosecuting Jews for host desecration.
John died in 1337 and was buried in the Doberan Minster.
Pomerania successfully defended Rügeneral, and Mecklenburg"s claims on Rügeneral could not be enforced.