Maria Teresa CyboMalaspina was the Duchess of Massa and the Princess of Carrara from 1731 until her death in 1790. She was the eldest child of Alderano I CyboMalaspina and his wife Ricciarda Gonzaga. She was the wife of Ercole III dEste, Duke of Modena.
Maria Teresa was born in the town of Novellara . As the eldest child, she was her fathers primary heiress. Her father died onAugust 1731 when she was just six years old.
Source: Wikipedia