 Complete the following phrase:  At the time, Austria still claimed the mantle of the Empire and was the chief force of the disunited German states. Until 1745, Maria Theresa was able to regain the Imperial crown from her Wittelsbach rival Charles VII by occupying his Bavarian lands, but, despite her Quadruple Alliance with Great Britain, the Dutch Republic and Saxony, she failed to recapture Silesia: The 