Jean-Gaspard Dichat de Toisinge (13 August 1740 – 21 April 1796) became a general officer in the service of the Kingdom of Sardinia-Piedmont during the War of the First Coalition. Born in the Duchy of Savoy into a distinguished family, he entered the Sardinian army in 1759 and advanced in rank in the peacetime army. After the outbreak of war, he was promoted to lieutenant colonel of the Aosta Infantry Regiment in 1793. That year he became commander of a provisional regiment of grenadiers. In early 1796 he was promoted colonel and later led a division. After another promotion to general officer, he fought against Napoleon Bonaparte's French army at the battles of San Michele and Mondovì and was killed in the latter action.
Early career
Jean-Gaspard Dichat de Toisinge was born on 13 August 1740 at Chambéry in the Duchy of Savoy in what is now in the department of Savoie in France. He was baptized on 22 August in the church at Saint-Léger. His parents were Pierre-Antoine Dichat and Rose Ginodi. In 1740, his father, who was a judge, was raised to the nobility with the title Seigneur de Toisinge. The village of Toisinge was near Bonneville. On 26 April 1749, his father was appointed senator when Savoy was returned to the Kingdom of Sardinia after being occupied by Spanish troops for seven years. Charles, the older brother of Jean-Gaspard, became a tax-lawyer in 1762 and was appointed senator in 1782.
On 20 April 1759, Jean-Gaspard Dichat joined the Fusilier Regiment in the Royal Sardinian Army as a cadet. He was promoted alfiere or ensign in the same regiment on 7 March 1763. As alfiere, he transferred to the grenadier companies on 29 June 1768. He was elevated in rank to lieutenant on 16 May 1769. The Fusiliers became the Aosta Infantry Regiment on 16 September 1774. Dichat was appointed captain-lieutenant on 20 November 1774 and captain on 17 May 1778. He became a captain of grenadiers on 24 June 1786. He was promoted major in the Aosta Regiment on 5 October 1787.
War with France
1792–1795
By a quirk of geography, the Kingdom of Sardinia possessed two regions that were on the French side of the Alps. The Duchy of Savoy and the County of Nice had long been coveted by France. Since these regions were on the west side of the mountains, they were difficult to defend in case of a war with a major power like France. In order for a minor power like Sardinia to defend against France, it needed to ally itself with a major power like Habsburg Austria which controlled the nearby Duchy of Milan. However, Austria was in the process of gobbling up large parts of Poland, so it was an ally that could not completely be trusted. King Victor Amadeus III finally obtained a pact with Austria on 22 September 1792, but it was too late. The French invasion of Savoy began on the night of 21 September 1792 and by 24 September, French troops occupied Chambéry without encountering much resistance. A second French invasion force crossed the Var River on 29 September and occupied Nice.
Dichat's older brother Charles apparently made an accommodation with the First French Republic. One month after the French occupation of Chambéry, Charles took an oath to maintain, "the freedom and equality of the sovereign people", at the Chambéry cathedral. However, Jean-Gaspard Dichat remained true to his Sardinian king. He was promoted lieutenant colonel on 24 July 1793, still in the Aosta Regiment. On 12 February 1793, he was assigned to lead a provisional regiment formed from the 8th and 9th Grenadier Battalions. Grenadier battalions were formed by detaching the elite companies from existing regiments.
An order of battle of 30 March 1793 placed the 8th Grenadier Battalion in the Left Division under General Pernigotti at Breil-sur-Roya and the 9th Grenadier Battalion in the Right Division under General Dellera at Fontan. Both battalions were approximately 400 strong and both divisions were subordinate to General Charles-François Thaon, Count of Saint-André. In the First Battle of Saorgio on 8–12 June 1793, French attacks on Mont-Authion and the Col de Raus were repulsed with serious losses. On 8 June, the 8th Grenadier Battalion served with the Left Division under the Count of Saint-André at Camp Brouis while the 9th Grenadier Battalion was assigned to the Right Division under General Michelangelo Alessandro Colli-Marchi at Camp Fromagnie near Mont-Authion.