For 10 points, name this man who opposed Maria Theresa and fought the War of the Austrian Succession and Seven Years' War, a much-regarded Prussian monarch.
This ruler pushed through a major colonization project in the Oder swamp despite mounting death tolls. He secured a major alliance through the Convention of Westminster and won victories by refusing the flank at Rossbach and Mollwitz, but needed the death of Empress Elizabeth and succession of Peter III to save him from certain defeat at the hands at a coalition including Louis XV after using Salic law to assert his claim over a territory acquired in the Treaty of Aix-la-Chapelle. For 10 points, name this man who opposed Maria Theresa and fought the War of the Austrian Succession and Seven Years' War, a much-regarded Prussian monarch.
This ruler pushed through a major colonization project in the Oder swamp despite mounting death tolls.
{Frederick} II [or {Frederick} the {Great}; or {Frederick} IV of {Brandenburg}]