| Consort: | yes |
| Maria d'Este | |
| Succession: | Duchess consort of Parma and Piacenza |
| Reign: | 1 October 1668 – 20 August 1684 |
| Issue: | Princess Isabella Princess Vittoria Princess Vittoria Princess Caterina Princess Eleonora Francesco, Duke of Parma Antonio, Duke of Parma |
| House: | House of Farnese House of Este |
| Father: | Francesco I d'Este, Duke of Modena |
| Mother: | Maria Caterina Farnese |
| Birth Date: | 8 December 1644 |
| Birth Place: | Modena, Duchy of Modena |
| Death Place: | Parma, Duchy of Parma and Piacenza |
| Place Of Burial: | Santa Maria della Steccata, Parma |
| Date Of Burial: | 21 August 1684 |
Maria d'Este (8 December 1644 – 20 August 1684) was a Modenese princess and Duchess of Parma as the wife of Ranuccio II Farnese, Duke of Parma. She was a daughter of Francesco I d'Este, Duke of Modena and Maria Caterina Farnese.[1]
Maria was the eighth child and fourth daughter of Francesco I d'Este, the reigning Duke of Modena since 1629. Her mother was a daughter of Ranuccio I Farnese, Duke of Parma.
Maria was born in Modena to Francesco I d'Este, Duke of Modena and his consort Maria Caterina Farnese. A member of the House of Este, she was a princess of Modena by birth.
In order to cement relations between the House of Farnese, Maria's older sister Isabella d'Este had been married to Ranuccio Farnese, Duke of Parma, son of Odoardo Farnese, Duke of Parma and Margherita de' Medici in 1664. Isabella died in 1666 as a result of childbirth.[2] In order to preserve the union between the two ducal houses, the unmarried Maria became Ranuccio's next consort.
A wedding was signed by proxies in October 1667 and formally in Modena on 1 January 1668 she was duly married to the widowed Ranuccio Farnese.[1] The marriage produced seven children; she also had two stillborn children. Out of the seven, three survived infancy, however none of them went on to have further children.
Maria died in Parma at the age of 39. Her husband survived her by ten years. Her two youngest sons, Francesco and Antonio, each became the Duke of Parma. Antonio was the last member of the House of Farnese, the duchy of Parma going to the Spanish House of Bourbon in 1731.
Maria was buried at the Sanctuary of Santa Maria della Steccata in Parma on 21 August 1684. She has no surviving descendants.