Maria Theresa was the daughter of Emperor Charles VI and Elizabeth Christine. Her father had no male descendant to inhert him, so the great Habsburg´s property was endangered. In 1713 Charles VI brought a document called Pragmatic Sanction. This was a legal provision which prescribed that all Habsburg’s countries were indivisible and the inheritance belonged to Charles daughters and their ancestors. Maria Theresa came to the throne as the only Habsburg and the last of the House of Habsburg. She got married to Francis Stephen of Lorraine whom she proclaimed as co-ruler and the dinasty was later called Habsburg-Lorraine. She ruled as an absolutist and brought many reforms with the assistance of her counsellors and ministers. She was very capable and decisive that made her one of the most important monarchs in the period of prosperous absolutism. She gave birth to 16 children ten of whom survived to adulthood. At the very beginning of the reign she fought against Frederick II of Prussia in the for Austrian teritory (1740 – 1748). During her reign there was another war – the SevenYear’s War and comes to the first division of Poland. After her husband had died, her son Joseph II became the co-ruler, but she limited his power which caused much of disagreement between two of them and it basted so until she died.