War of the Polish Succession in the context of "Augustus II the Strong"

The Kingdom of Naples, officially the Kingdom of Sicily, was a state that ruled the part of the Italian Peninsula south of the Papal States between 1282 and 1816. It was established by the War of the Sicilian Vespers (1282–1302). Until then, the island of Sicily and southern Italy had constituted the "Kingdom of Sicily". When the island of Sicily revolted and was conquered by the Crown of Aragon, it become a separate kingdom also called the Kingdom of Sicily. This left the Neapolitan mainland in the possession of Charles of Anjou who continued to use the name "Kingdom of Sicily". Later, two competing lines of the Angevin family competed for the Kingdom of Naples in the late 14th century, which resulted in the murder of Joanna I at the hands of her successor, Charles III of Naples. Charles' daughter Joanna II adopted King Alfonso V of Aragon as heir, who would then unite Naples into his Aragonese dominions in 1442.

As part of the Italian Wars, France briefly ruled the territory in 1494 and at the beginning of the 16th century; it then went to war with Spain over the kingdom in 1502, a conflict that ended in a victory for Ferdinand II, who was in full control of the kingdom by 1504. The Spanish held control of Naples throughout the 17th century where it remained an important source of economic and military power for the Spanish Crown. After the War of the Spanish Succession in the early 18th century, the possession of the kingdom again changed hands; the 1714 Treaty of Rastatt saw Naples given to Charles VI of the Austrian Habsburgs. However, Naples and Sicily were conquered by Charles, Duke of Parma (of the Spanish Bourbons) during the War of the Polish Succession in 1734, he was then installed as King of Naples and Sicily from 1735. In 1816, Naples formally unified with the island of Sicily to form the Kingdom of the Two Sicilies.

The term French–Habsburg rivalry (French: Rivalité franco-habsbourgeoise; German: Habsburgisch-französischer Gegensatz) describes the rivalry between France and the House of Habsburg. The Habsburgs headed an expansive and evolving empire that included, at various times, the Holy Roman Empire, the Spanish Empire, Portugal through Iberian Union, Austria, Bohemia and Hungary from the Diet of Augsburg in the High Middle Ages until the dissolution of the monarchy following World War I in the late modern period.

In addition to holding the Austrian hereditary lands, the Habsburg dynasty ruled the Low Countries (1482–1794), Spain (1504–1700) and the Holy Roman Empire (1438–1806). All these lands were in personal union under Emperor Charles V. The expansion of the Habsburgs into western Europe increasingly led to border tensions with the Kingdom of France, which found itself encircled by Habsburg territory. The subsequent rivalry between the two powers became a cause for several conflicts. These include parts of the Anglo-French Wars (1066–1815), the War of the Burgundian Succession (1477–1482), the Italian Wars (1494–1559), the Thirty Years' War (1618–1648), the Nine Years' War (1688–1697), and the succession wars of Jülich (1609–1614), Mantua (1628–1631), Spain (1700–1713), Poland (1733–1736) and Austria (1740–1748).

Francis I (Francis Stephen; French: François Étienne; German: Franz Stefan; Italian: Francesco Stefano; 8 December 1708 – 18 August 1765) was Holy Roman Emperor from 1745 to 1765, Archduke of Austria from 1740 to 1765, Duke of Lorraine and Bar from 1729 to 1737, and Grand Duke of Tuscany from 1737 to 1765. He became the ruler of the Holy Roman Empire and Tuscany through his marriage to his second cousin Maria Theresa of Austria, daughter of Emperor Charles VI. Francis was the last non-Habsburg monarch of the Empire. The couple were the founders of the Habsburg-Lorraine dynasty, and their marriage produced sixteen children.

Francis was the oldest surviving son of Leopold, Duke of Lorraine, and the French princess Élisabeth Charlotte d'Orléans. Duke Leopold died in 1729 and was succeeded by his son. In 1736, Francis married Maria Theresa. In 1738, he left the Duchy of Lorraine and Bar for the deposed Polish king Stanisław Leszczyński in exchange for the Grand Duchy of Tuscany, as one of the terms ending the War of the Polish Succession. Following the death of his father-in-law, Charles VI, in 1740, Francis and Maria Theresa became the rulers of the Habsburg domains. Maria Theresa gave her husband responsibility for the empire's financial affairs, which he handled well. Francis died in 1765 and was succeeded by their son, Joseph II, who co-ruled Austria alongside Maria Theresa.

Maria Theresa (Maria Theresia Walburga Amalia Christina; 13 May 1717 – 29 November 1780) was the ruler of the Habsburg monarchy from 1740 until her death in 1780, and the only woman to hold the position in her own right. She was the sovereign of Austria, Hungary, Croatia, Bohemia, Transylvania, Slavonia, Mantua, Milan, Moravia, Galicia and Lodomeria, Dalmatia, Austrian Netherlands, Carinthia, Carniola, Gorizia and Gradisca, Austrian Silesia, Tyrol, Styria and Parma. By marriage, she was Duchess of Lorraine, Grand Duchess of Tuscany, and Holy Roman Empress.

Maria Theresa started her 40-year reign when her father, Charles VI, Holy Roman Emperor, died on 20 October 1740. Charles VI paved the way for her accession with the Pragmatic Sanction of 1713 and spent his entire reign securing it through international diplomacy. He neglected the advice of Prince Eugene of Savoy, who believed that a strong military and a rich treasury were more important than mere signatures. Eventually, Charles VI left behind a weakened and impoverished state, particularly due to the War of the Polish Succession and the Russo-Turkish War (1735–1739). Moreover, upon his death, Saxony, Prussia, Bavaria, and France all repudiated the sanction they had recognised during his lifetime. Frederick II of Prussia (who became Maria Theresa's greatest rival for most of her reign) promptly invaded and took the affluent Habsburg province of Silesia in the eight-year conflict known as the War of the Austrian Succession. In defiance of the grave situation, she managed to secure the vital support of the Hungarians for the war effort. During the course of the war, Maria Theresa successfully defended her rule over most of the Habsburg monarchy, apart from the loss of Silesia and a few minor territories in Italy. Maria Theresa later unsuccessfully tried to recover Silesia during the Seven Years' War.

Charles Emmanuel III (27 April 1701 – 20 February 1773) was Duke of Savoy, King of Sardinia and ruler of the Savoyard states from his father's abdication on 3 September 1730 until his death in 1773. He was the paternal grandfather of the last three mainline kings of Sardinia. In the War of the Polish Succession, he initially gained Lombardy but later ceded it for smaller territorial gains. During the War of the Austrian Succession, he defended Piedmont against a Franco-Spanish army, winning the Battle of Assietta. The Treaty of Aix-la-Chapelle restored lost lands and expanded his territory. He strengthened ties with Spain through marriage alliances. He chose not to get involved in the Seven Years War and instead focused on administrative reforms and maintaining a well-disciplined army.

Lieutenant-General Louis-Joseph de Montcalm-Gozon, Marquis de Montcalm de Saint-Veran (28 February 1712 – 14 September 1759) was a French Royal Army officer best known for his unsuccessful defence of New France during the French and Indian War.

Montcalm was born in Vestric-et-Candiac near Nîmes to an aristocratic family, and joined the French army at a young age. He served in the War of the Polish Succession and the War of the Austrian Succession, where his service resulted in a promotion to brigadier general. In 1756, King Louis XV sent him to New France to lead its defence against the British in the Seven Years' War. Montcalm met with notable successes in 1756, 1757 and 1758, but British mobilisation of large numbers of troops against New France led to military setbacks in 1758 and 1759 (when, in January, he was promoted to lieutenant general), culminating in Montcalm's death at the Battle of the Plains of Abraham.

Imperial Army (Latin: Exercitus Imperatoris, German: Kaiserliche Armee) or Imperial troops (Kaiserliche Truppen or Kaiserliche) was a name used for several centuries, especially to describe soldiers recruited for, and under the command of the Holy Roman Emperor themself, during the early modern period. The Imperial Army of the Emperor should not be confused with the Army of the Holy Roman Empire (Exercitus Imperii (Romani), Reichsarmee, Armée du Saint-Empire), which could only be deployed with the consent of the Imperial Diet. Imperial units effectively became a standing army of troops under the Habsburg Emperors from the House of Austria, which is why they were also increasingly described in the 18th century as "Austrians", although its troops were recruited not just from the Archduchy of Austria but from all over the Holy Roman Empire.

The Army of the Two Sicilies, also known as the Royal Army of His Majesty the King of the Kingdom of the Two Sicilies (Reale Esercito di Sua Maestà il Re del Regno delle Due Sicilie), the Bourbon Army (Esercito Borbonico) or the Neapolitan Army (Esercito Napoletano), was the land forces of the Kingdom of the Two Sicilies, whose armed forces also included a navy. It was in existence from 1734 to 1861. It was the land armed force of the new independent state created by the settlement of the Bourbon dynasty in southern Italy following the events of the War of the Polish Succession.