A fascinating thread, Palatine!
All the "Mazarinettes" were so complex and interesting women. If I´m not wrong, cardinal Jules Mazarin had two sisters: Girolama and Laura Margherita Mazzarini. Girolama was married to Michele Mancini, and Laura Margherita was married to Girolamo Martinozzi.
Michele Mancini and Girolama were the parents of: Marie, Marianne, Hortense and Olympe Mancini. They also had a son, Philippe, overshadowed by his flamboyants sisters.
Girolamo Martinozzi and Laura Margherita were the parents of: Anne Marie and Laura.
All the Mazarin´s nieces made princely marriages. Anne Marie Martinozzi, the elder daughter of count Girolamo and his Laura Margherita, was married to Armand de Bourbon-Conti, prince of Conti, in 1654. This prince Armand, a son of Henri II de Bourbon prince Conti and Anne Geneviève de Bourbon duchesse of Langueville, wished to marry Charlotte of Lorraine, daughter of the famous Duchesse of Chevreuse Marie of Rohan-Montbazon (a lady at the center of all the intrigues...), but, at the end, he married the "mazarinette" Anne Marie, a young girl with a fabulous dowry. Anne Marie was a sensitive, sweet and pious woman, who loved tenderly his husband and gave him two sons.
Laura Martinozzi, elder sister of Anne Marie, was married to Alfonso IV d´Este duke of Modena. They became the parents of Mary of Modena queen of England. Laura married at Compiègne in 1655 and her wedding was celebrated with a marvellous ballet composed by Lully, the "Ballet des Bienvenues".
The cousins of both Anne Marie and Laura were most famous nieces of Mazarin. Marie was beloved by the king Louis XIV, but the queen mother Anne of Austria and the cardinal Mazarin himself appointed that the sovereign must marry infanta Marie Therese of Spain; so, Marie Mancini was taken apart from the king and later married to prince Lorenzo Colonna. It is said that, before his idyll with Marie Mancini, king Louis had a liaison with Olympe Mancini, not a beauty as her sisters, but a woman "with fire in her eyes". At 1657, Olympe was married to Eugène de Savoie-Carignan, count of Soissons. Marianne Mancini was duchess of Bouillon by her marriage to Godefroy Maurice de La Tour d´Auvergne. Marianne was so ravishing, too: some verses of La Fontaine were addresed to this lady.
As Palatine pointed, both Olympe and Marianne were involved in the scandal named the "poison affair". A midwife named Catherine Deshayes Monvoisin was sentenced to death for witchcraft and poisoning, and burnet at a stake. She claimed that she had provided aphrodisiacs and performed black masses to and with the king´s mistress, Françoise Athenaïs marchess of Montespan. She also involved in the awful affair the sisters Mancini, Olympe and Marianne. It was said that Olympe tried to poisoning her husband Eugène and also Louise de la Vallière...another mistress of king Louis XIV.
I´m sure it was a time with interesting men but so fascinating women!