Question: Who is Charles Bretagne Marie De La Trémoille's paternal grandfather?

Knowledge 1: Charles Bretagne Marie de La Trémoille
Prince Charles Bretagne Marie de La Trémoille (24 March 1764 – 10 November 1839), 8th Duke of Thouars, 7th Duke of La Trémoïlle, 10th prince de Tarente, 14th prince de Talmond and 14th Count of Laval, was a French aristocrat and soldier; he was the son of Jean Bretagne Charles de La Trémoille and his wife Princess Marie-Maximilienne of Salm-Kyrburg. [SEP] Knowledge 2: Jean Bretagne Charles de La Trémoille
Prince Jean-Bretagne-Charles de La Trémoille (5 February 1737 – 19 May 1792), 7th Duke of Thouars, was a French soldier and the son of Charles Armand René de La Trémoille and his wife, Marie Hortense de La Tour d'Auvergne of Bouillon.
Knowledge 1: Jean Bretagne Charles de La Trémoille
Prince Jean-Bretagne-Charles de La Trémoille (5 February 1737 – 19 May 1792), 7th Duke of Thouars, was a French soldier and the son of Charles Armand René de La Trémoille and his wife, Marie Hortense de La Tour d'Auvergne of Bouillon. [SEP] Knowledge 2: Charles Armand René de La Trémoille
Charles Armand René de La Trémoille (14 January 1708, in Paris – 23 May 1741),6th duc de Thouars, was the son of Charles Louis Bretagne de La Trémoille and his wife, Marie Madeleine Motier de la Fayette.La Trémoille was a French soldier and president of the States of Brittany.He joined the military at a young age and became a colonel of the Champagne regiment at the age of eighteen.Later, he became governor of Île-de-France.He distinguished himself in the battle of Guastalla, in Italy, and was named shortly thereafter sergeant of the armies of the king.La Trémoille was the author of some works and was elected a member of the Académie française on 13 February 1738.On 29 January 1725 he married his cousin Marie Hortense de La Tour d'Auvergne, the daughter of Marie Armande Victoire de la Trémoïlle (1677–1717) and Emmanuel-Théodose de La Tour d'Auvergne, duc de Bouillon (1668–1730).Marie Hortense, like her husband was a granddaughter of Charles Belgique Hollande de La Trémoille.From this union was born a son:Jean Bretagne Charles de La Trémoille and a daughter who died in infancy.
Knowledge 1: Jean Bretagne Charles de La Trémoille
Prince Jean-Bretagne-Charles de La Trémoille (5 February 1737 – 19 May 1792), 7th Duke of Thouars, was a French soldier and the son of Charles Armand René de La Trémoille and his wife, Marie Hortense de La Tour d'Auvergne of Bouillon. [SEP] Knowledge 2: Claude de La Trémoille
Claude de La Trémoille, 2nd Duke of Thouars (1566 – 25 October 1604) was a sixteenth-century French nobleman of the La Tremoille family.He was the son of Louis III de La Trémoille and his wife, Jeanne de Montmorency.King Henry IV of France had been friendly with La Trémoille when he was King of Navarre, but kept him in a subordinate position once he became King of France, preferring La Trémoille's cousin, Henry de La Tour d'Auvergne, the Viscount of Turenne.In 1587, La Trémoille converted to Protestantism.He fought for Henry IV at the battle of Coutras and also at Ivry, and was rewarded by elevation to the peerage, as Duke of Thouars, in 1595.This new title, however, made La Trémoille lose more money than it earned him.In 1598, Turenne proposed to his sister-in-law Charlotte-Brabantine to marry La Trémoille.Thanks to her relations with the houses of Orange and Bouillon, Charlotte-Brabantine played an important part in the French Protestant diplomacy.They had four children: Henry; Charlotte, who married James Stanley, Earl of Derby; Élisabeth (1601–1604); and Frédéric (1602–1642) comte de Laval.In 1602, Charlotte-Brabantine dissuaded her husband from engaging in the conspiracy of Biron and encouraged him to lend allegiance to the king.He died in 1604.

Answer: Charles Armand René de La Trémoille