page_title: Maria Teresa Felicitas d'Este
section_title: Titles and styles
hierarchical_section_title: Maria Teresa Felicitas d'Este / Titles and styles
caption_attribution_description: English: Arms of Maria Teresa Felicitas d'Este as Duchess of Penthièvre
context_page_description: Maria Teresa Felicitas d'Este was born a princess of Modena. By marriage, she was the Duchess of Penthièvre. She was the mother-in-law of Philippe Égalité and a grandmother to the future Louis Philippe I.
  One of nine children, she was the first daughter of the family but her mother eventually returned to France to live. In France she was eventually engaged to the hugely wealthy Duke of Penthièvre, who was a distant cousin of hers. In France she was known as Marie Thérèse Félicité.
context_section_description: 6 October 1726 - 29 December 1744 Her Most Serene Highness Princess Maria Teresa Felicitas.
  29 December 1744 - 30 April 1754 Her Most Serene Highness The Duchess of Penthièvre.
caption: The Duchess's arms.
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