the Hanseatic cities and Prussia were again reversed. Here the majority of the Hansa members decided in the Hanseatic Diet on 1 May 1388 for an embargo against the Flemish cities. Meanwhile, Prussia could not prevail with its plea for further negotiations. Trading The Order's Großschäffer was one of the leading functionaries of the order. The word translates about as "chief sales and buying officer" with procuration. They were in charge of the considerable commerce, import, export, crediting, real estate investment etc., which the Order carried out, using its network of bailiwicks and agencies spanned over much of Central, Western and Southern Europe and the Holy Land. The other Großschäffer in Marienburg had the grain export monopoly. As to imports both were not bound to any particular merchandise. From Königsberg, holding the monopoly in amber export, achieved the exceptional permission to continue amber exports to Flanders and textile imports in return. On the occasion of the ban on Flemish trade, the Hansa urged Prussia and Livonia again to interrupt the exchange with Novgorod as well, but with both blockades Russian and Flemish commodities could not reach their final destinations. In 1392 it was then Grand Master Conrad of Wallenrode who supported the Flemish to achieve an acceptable agreement with the Hansa resuming the bilateral trade. While a Hanseatic delegation under Johann Niebur reopened trade with Novgorod in the same year, after reconfirmation of the previous mutual privileges. Since the late 1380s grave piracy by privateers, promoted by Albert of Sweden and Mecklenburg actually directed against Margaret I of Denmark, blocked seafaring to the herring supplies at the Scania Market, thus fish prices tripled in Prussia. The Saxon Hansa cities urged Prussia to intervene, but Conrad of Jungingen was more worried about a Danish victory. So only after the cities, led by Lübeck's burgomaster Hinrich Westhof, had liaised the Treaty of Skanör (1395), Albert's defeat manifested, so that Prussia finally sent out its ships, led by Danzig's city councillor Conrad Letzkau. Until 1400 the united Teutonic-Hanseatic flotilla then thoroughly cleared the Baltic Sea from pirates, the Victual Brothers, and even took the island of Gotland in 1398. 15th century Konrad von Jungingen At the beginning of the 15th century, the State of the Teutonic Order stood at the height of its power under Konrad (Conrad) von Jungingen. The Teutonic navy ruled the Baltic Sea from bases in Prussia and Gotland, and