For ten points, name this effort by Charles VI to ensure that the lands of the Holy Roman Empire were not divided when Maria Theresa became empress.
This event altered a 1703 pact between Leopold I and two of his sons, which was written during the War of the Spanish Succession. Taking effect in 1740 when its author died, it stipulated his successor as his daughter rather than any of his nephews. While multiple rulers initially accepted it, two of them reneged on their promise, leading the Habsburgs to lose Silesia in the War of the Austrian Succession. For ten points, name this effort by Charles VI to ensure that the lands of the Holy Roman Empire were not divided when Maria Theresa became empress.
This event altered a 1703 pact between Leopold I and two of his sons, which was written during the War of the Spanish Succession.
{Pragmatic Sanction} of 1713