During the first of the French Civil Wars, especially between 1560 and 1563, Eléanor and her mother were engaged in important political activities in support of her husband, the Prince of Condé. Twice while Condé was a prisoner of the ultra-catholic Guise family, his wife and mother-in-law systematically reinforced his alliances with Protestant German princes and with Elizabeth I of England.[4] Armed with this support, Eléanor made negotiations by letter and by direct contact with the regent, Catherine de' Medici; the outcome was the Peace of Amboise and the release of her husband.[5]
de Boislisle, A. (1902). "Trois Princes de Conde: A Chantilly". Annuaire-Bulletin de la Société de l'Histoire de France (in French). 39 (2).
Knecht, R.J. (2000). The French Civil Wars. Pearson Education Limited.
Lachèvre, Frédéric (1917). "Poésies inédites de Jacques Grévin". Revue d'Histoire littéraire de la France (in French).
Laoutaris, Chris (2014). Shakespeare and the Countess: The Battle that Gave Birth to the Globe. Penguin Books Limited. ISBN978-0-241-96021-9.
Thompson, James Westfall (1915). The Wars of Religion in France, 1559-1576: The Huguenots, Catherine de Medici and Philip II. The University of Chicago Press.