A lovely Uffizi story... For the sake of the argument, lets just call her Maria... her father was apparently a well respected painter. He wanted to give his money only to his son, so he forced his two daughters to be cloistered in a convent to exclude them from any claim on his estate. (Boo!) At 16 years of age Maria was considered so beautiful that the upon receiving a request from another local artist for a model for a religious art work, the Mother Superior sent Maria and another to sit for the artist.
In a time honoured tale and one which the Sound of Music folk clearly borrowed... From noviciate to wife in quick passage of time, Maria had sons with the artist, at least one of which became a dab hand with the brush... and I hope made more money than the inheritance her brother received.