Sven Sture [sv], who had been Queen Margareta's commander on Gotland, switched sides after the invasion and allied himself with the Mecklenburgs and the Victual Brothers.

[4] Duke Johan of Mecklenburg went to the island to support Eric's widow and to assume control over the Victual Brothers, but he was unable to manage the situation.

In January 1398, the Order and the leading Prussian cities Danzig, Thorn, Elbing, Königsberg and Braunsberg decided on a joint effort to invade Gotland.

On 21 March the Teutonic fleet arrived at Klintehamn and Sven Sture, who was the commander of the island,[8] was forced to retreat to the strongly fortified city of Visby.

In detail, the agreement allowed for free passage of merchants from the Hanseatic League, to clear the entirety of Gotland from the Teutonic Order's enemies, to destroy the castles, to make restitution for the stolen goods, and to preserve the rights and privileges of Visby.

There are also documents of the Order's high priest, Johan von Techwitz, personally cooperated with Gotland's county judges in disputes between farmers.