Maria Theresa ruled for 40 years.
 During the course of the war, Maria Theresa successfully defended her rule over most of the Habsburg monarchy, apart from the loss of Silesia and a few minor territories in Italy
 Maria Theresa kept up a fortnightly correspondence with Maria Antonia, now called Marie Antoinette, in which she often reproached her for laziness and frivolity and scolded her for failing to conceive a child

