Early years , 1670|289x289px
Archduchess Maria Antonia was born in
Vienna on 18 January 1669, the eldest daughter of
Leopold I, Holy Roman Emperor born from his first
marriage to his niece, Infanta
Margaret Theresa of Spain. Her only older sibling had already died by the time she was born. She had two younger siblings, both of whom died in infancy, and twelve half-siblings, six of whom lived into adulthood. Since her childhood, Maria Antonia was an intelligent and cultivated girl, sharing her parents' passion for music. Maria Antonia had the highest
coefficient of inbreeding in the
House of Habsburg, 0.3053, higher than that of a child born to a parent and offspring, or brother and sister: her father was her mother's maternal uncle and paternal first cousin once removed, and her maternal grandparents were uncle and niece too. However, despite this extreme inbreeding, she managed to survive childhood and reach adulthood, and she was the only one among her siblings to do so. In exchange, he promised to have his son-in-law appointed as
governor of the
Spanish Netherlands. The marriage was very unhappy, as the extroverted Maximilian and the introverted and serious Maria Antonia had little in common. Maria Antonia was reportedly offended by Maximilian's constant infidelity. When he was appointed governor of the Spanish Netherlands and left for Brussels in the company of his mistress Countess Canozza, Maria Antonia left for her father in Vienna to give birth, and it was widely assumed that she did not intend to return to Maximilian. She died of
postpartum infections after childbirth. ==Legacy==