Florestan I, Prince of Monaco
Florestan I (10 October 1785, in Paris – 20 June 1856) was Prince of Monaco and Duke of Valentinois from 2 October 1841 until his death.
He was born
Tancrède Florestan Roger Louis Grimaldi the second son of Prince Honoré IV and Louise d'Aumont Mazarin and succeeded to the throne on the death of his brother, Honoré V.
Prince Joseph of Monaco
Prince Joseph of Monaco( Joseph
Marie Jerôme Honoré; 10 September 1763 – 28 June 1816) was a Monagasque prince and brother of Honoré IV, Prince of Monaco.
Her served as regent of Monaco on behalf of his brother in 1814- 1815.
Robert Calcagno
Robert Calcagno born 26 June 1960 is a Monegasque politician and leader who is CEO of the Oceanographic Institute
Foundation Albert I, Prince of Monaco.
Robert Calcagno has held ministerial posts in the government of the Principality of Monaco between 2006 and 2009.
He now leads the Oceanographic Museum of Monaco and the Maison des océans in Paris
His commitment to the protection of the oceans, to a better balance between Humankind and Nature and, on a broader level, his involvement in the economic, social and international life of the Principality of Monaco, have made him one of the key players in the policies of H.S.H. Prince Albert II of Monaco.
Princess Stéphanie of Monaco
Princess Stéphanie of Monaco, Countess of Polignac( Stéphanie Marie Elisabeth Grimaldi; born 1 February 1965) is the youngest child of Rainier III, Prince of Monaco, and the American actress Grace Kelly.
She is the younger sister of Albert II, Prince of Monaco, and Caroline, Princess of Hanover.
Currently 14th in the line of succession to the Monegasque throne, she has been a singer, swimwear designer and fashion model.
Antoinette de Mérode
Antoinette de Merode (Antoinette Ghislaine; 28 September 1828 – 10 February 1864), was the Princess of Monaco by marriage to Charles III, Prince of Monaco.
Princess Charlotte, Duchess of Valentinois
Princess Charlotte of Monaco, Duchess of Valentinois( Charlotte Louise Juliette Grimaldi; 30 September 1898 – 15 November 1977), was the daughter of Louis II, Prince of Monaco, and the mother of Rainier III, Prince of Monaco.
From 1922 until 1944, she was the Hereditary Princess of Monaco, heir presumptive to the throne.
Louise d'Aumont
Louise d'Aumont, "duchesse d'Aumont, duchesse Mazarin et de La Meilleraye" (Louise Félicité Victoire; 22 October 1759 in Paris – 13 December 1826 in Paris) was a French Duchess, and a Princess of Monaco by marriage to Honoré IV, Prince of Monaco.
Chevalier de Grimaldi
Antoine Grimaldi, le Chevalier [de] Grimaldi, (Paris, 2 October 1697 – Monaco, 28 November 1784) was the de facto ruler of Monaco between 1732 and 1784.
An illegitimate son of Antonio I of Monaco and the dancer Élisabeth Dufort (named "Babé"), he was recognized by his father in 1715.
The Chevalier de Grimaldi became governor-general of Monaco on 20 May 1732, when his brother-in-law Jacques I, Prince of Monaco and his young nephew Honoré III, Prince of Monaco moved to Hôtel Matignon in Paris and remained there, even after the proclamation in 1734 of Honoré as Prince of Monaco.
This situation remained the same for half a century until Antoine's death in 1784, when Honoré III was already 64 years old.
Antoine Grimaldi was an able regent.
For example, he succeeded in keeping Monaco out of the War of the Austrian Succession (1740–1748).
He never married and died on 28 November 1784.
His remains were moved in 1966 to the Apse of the Monaco Cathedral.
Maria Caroline Gibert de Lametz
Marie Caroline Gibert de Lametz,( 18 July 1793 – 25 November 1879), was a French stage actress and a Princess Consort and regent de facto of Monaco by marriage to Florestan I, Prince of Monaco.
Princess Florestine of Monaco
Princess Florestine Gabrielle Antoinette of Monaco( Full French name:" Florestine Gabrielle Antoinette, Princesse de Monaco")( 22 October 1833 in Fontenay- aux- Roses, Kingdom of the French – 4 April 1897 in Stuttgart, Kingdom of Württemberg) was the youngest child and only daughter of Florestan I, Prince of Monaco, and his wife Maria Caroline Gibert de Lametz.
Florestine was a member of the House of Grimaldi and a Princess of Monaco by birth and a member of the House of Württemberg and Duchess consort of Urach and Countess of Württemberg through her marriage to Wilhelm, 1st Duke of Urach.

Question: What nationality is Florestan I, Prince Of Monaco's mother?
Answer: French