Treaty of Berlin (1742)

Based on article 5 of the treaty, to avoid further border disputes, Her Majesty the Queen of Hungary and Bohemia by the present treaty for all eternity and with all sovereignty and independence cedes from the Lands of the Bohemian Crown both Lower and Upper Silesia to His Majesty the King of Prussia, notabene except for the Principality of Teschen and the City of Troppau (...) [1]Maria Theresa ceded most of Silesia with the County of Kladsko to Frederick, except for those districts of the Duchy of Troppau that were located south of the Opava river, including the southern part of the former Duchy of Jägerndorf, the possession of which had been one pretext for Frederick's invasion.

The Duchy of Neisse held by the Breslau bishops was also partitioned, with the fortress-city of Nysa and the larger northern portion of the territory falling to Prussia.

Austria retained the entire Upper Silesian Duchy of Teschen, ruled by Maria Theresa's husband, Francis Stephen of Lorraine, Grand Duke of Tuscany.

However, Prussia's former ally King Louis XV of France was upset by this peace agreement that gave the united Austrian, British and Hanoverian forces a free hand to oust the French troops at the 1743 Battle of Dettingen - an alienation that ultimately led to the Diplomatic Revolution of 1756.

Maria Theresa's Wittelsbach rival Emperor Charles VII, deserted and humiliated, had to stay at his Frankfurt exile while his Bavarian electorate remained under Austrian occupation.

Austrian Silesia comprising the ducal lands of Neisse (yellow), Troppau (red) with Jägerndorf (blue), and Teschen (orange)