After the failed romance between Louise Henriette of Orange and Henri Charles, Prince de Tarente, the Prince's mother arranged a marriage between Emilie and the Prince de Tarente. After a while the Prince and his German wife returned to France. Here, for a short while, her husband was involved with the Protestant opposition to Cardinal Mazarin. When this Cardinal imprisoned her husband, it was her mother-in-law who secured his release. They left France and her husband found employment in The Netherlands. 
However, for the future of their children they sent them to their protestant grandmother in Thouars. There they were safe until their grandmother died. Emilie then received a warning from the Vicomte Turenne that the king, Louis XIV, intended to prevent her children from leaving France, so she hurried there to pursuade her catholic father-in-law to allow her to remove her children. Turenne also warned her not to flee France via Paris as the King's messengers were on 
their way to arrest her and the children. 
For five years they lived peacefully in 's-Hertogenbosch. Then her husband suddenly resigned his Dutch positions to go to France. Returning a short time later, he broke the news that he had promised the French king that they would all return to France and the Catholic religion. Force was needed to take their son and only force and imprisonment could pursuade him to change religion. 

In despair, Emilie wrote to her Protestant relations and received an offer for her daughter to have a position at the court of her cousin, the Queen of Denmark, and in secret she left with her daughter. When told of their departure, her husbanc chased and caught up with them in Blois. After a painful confrontation, however, he allowed them to continue. On their arrival in Hessen-Kassel, they 
received the news that he had died. 
Instead of returning, they continued to Copenhagen where she installed her daughter at the Danish court, then a month later returned to France in the hope of saving others of her children as the 
edicts against the Huguenots had worsened. 
Soon her father-in-law died, making her son the new Duc de Thouars. However, as he had married a catholic wife, Emilie preferred to live by herself at the Chateau-Madame in Vitre, near Rennes in Brittany. 
Here she befriended the Marquise de Sevigny who lived nearly a mile away. They spent a great deal of time together or, when apart, wrote to each other on a regular basis. At this time, Emilie had little contact with her children. One daughter had become a nun and her younger son a priest, while the only communications she had with her eldest son were only in regard to financial matters. 

In 1681, after the treaty of Nijmegen, Louvois the French minister did not want to let his army go. To keep them occupied, he started the "dragonnades" against the remaining Protestants in France and the area around Thouars was destroyed. The Protestants were not allowed to sell their properties, thus reducing them to poverty. To protect themselves against the soldiers, the population either fled the country or converted to the Catholic faith. Amongst the many who converted was Vicomte Turenne, who would become one of France's famous marshals. On the 25 October 1685, Louis XIV voided the Edict of Nantes, which had protected the Protestants and was supposed to have been forever. 
After interferences by her German relations, Emilie was allowed to leave France and made her home in Frankfurt. Here she tried to support those Huguenots who had been able to escape from France and there she died, 15 February 1693, aged sixty-seven.
 

Source: Leo van de Pas