Maria Carolina of Austria in the context of "Elisabeth Christine of Brunswick-Wolfenbüttel"

Maria Theresa of Naples and Sicily (6 June 1772 – 13 April 1807) was the first Empress of Austria and last Holy Roman Empress as the spouse of Francis II. She was born a Princess of Naples as the eldest daughter of King Ferdinand I of the Two Sicilies and Queen Maria Carolina.

Joseph II (13 March 1741 – 20 February 1790) was Holy Roman Emperor from 18 August 1765 and sole ruler of the Habsburg monarchy from 29 November 1780 until his death. He was the eldest son of Empress Maria Theresa and her husband, Emperor Francis I, and the brother of Marie Antoinette, Leopold II, Maria Carolina of Austria, and Maria Amalia, Duchess of Parma. He was thus the first ruler in the Austrian dominions of the union of the Houses of Habsburg and Lorraine, styled Habsburg-Lorraine.

Joseph was a proponent of enlightened absolutism like his brother Leopold II; however, his commitment to secularizing, liberalizing and modernizing reforms resulted in significant opposition, which resulted in failure to fully implement his programs. Meanwhile, despite making some territorial gains, his reckless foreign policy badly isolated Austria. He has been ranked with Catherine the Great of Russia and Frederick the Great of Prussia as one of the three great Enlightenment monarchs. False but influential letters depict him as a somewhat more radical philosophe than he probably was. His policies are now known as Josephinism. He was a supporter of the arts, particularly of composers such as Wolfgang Amadeus Mozart and Antonio Salieri. He died with no known surviving legitimate offspring and was succeeded by his younger brother Leopold II.

Leopold II (Peter Leopold Josef Anton Joachim Pius Gotthard; 5 May 1747 – 1 March 1792) was the penultimate Holy Roman Emperor, as well as King of Hungary, Croatia and Bohemia, and Archduke of Austria from 1790 to 1792, and Grand Duke of Tuscany from 1765 to 1790. He was a son of Empress Maria Theresa and Emperor Francis I, and the brother of Queen Marie Antoinette of France, Queen Maria Carolina, Duchess Maria Amalia of Parma, and Emperor Joseph II. Leopold was a moderate proponent of enlightened absolutism like his brother Joseph II. He granted the Academy of Georgofili his protection. Unusually for his time, he opposed the death penalty and torture and abolished it in Tuscany on 30 November 1786 during his rule there, making it the first nation in modern history to do so. This act has been commemorated since 2000 by a regional custom known as the Feast of Tuscany, held every 30 November. Despite his brief reign, he is highly regarded. The historian Paul W. Schroeder called him "one of the most shrewd and sensible monarchs ever to wear a crown".

Emma, Lady Hamilton (born Amy Lyon; 26 April 1765 – 15 January 1815), was an English model, dancer and actress. She began her career in London's demi-monde, becoming the mistress of a series of wealthy men, culminating in the naval hero Lord Nelson, and was the favourite model and muse of the portraitist George Romney.

In 1791, at the age of 26, she married Sir William Hamilton, British ambassador to the Kingdom of Naples, where she was a success at court, befriending the queen who was a sister of Marie Antoinette, and meeting Nelson.