The Seven Sisters.

Mici is the middle of seven sisters, who all believe if a younger sister marries first, the oldest sisters all doomed to be old maids. The elder sisters conspire to have the younger, pretty Mici sent away to a convent school. Mici manages to slip away and attend a fancy party, where she meets Count Horkoy. They fall in love and to the delight of Mici's sisters, the Count also finds suitable husbands for all of them.