Duke of Parma in the context of "Ranuccio II Farnese"

Marie Louise (Maria Ludovica Leopoldina Franziska Theresia Josepha Lucia; 12 December 1791 – 17 December 1847) was Duchess of Parma from 11 April 1814 until her death in 1847. She was Napoleon's second wife and as such Empress of the French and Queen of Italy from their marriage on 2 April 1810 until his abdication on 6 April 1814.

As the eldest child of Francis II, Holy Roman Emperor and Emperor of Austria, and his second wife, Maria Theresa of Naples and Sicily, Marie Louise grew up during a period marked by ongoing and unceasing conflict between Austria and revolutionary France. A series of military defeats at the hands of Napoleon Bonaparte had inflicted a heavy human toll on Austria and led Francis to dissolve the Holy Roman Empire. The end of the War of the Fifth Coalition resulted in the marriage of Napoleon and Marie Louise in 1810, which ushered in a brief period of peace and friendship between Austria and the French Empire, much like prior alliances between the Austrian and French Royal family. Marie Louise agreed to the marriage despite being raised to despise France. She bore Napoleon a son, styled the King of Rome at birth, who briefly succeeded him as Napoleon II. Marie Louise's son was later titled Duke of Reichstadt.

The House of Farnese (/fɑːrˈneɪzi, -zeɪ/, also US: /-eɪsi/, Italian: [farˈneːze, -eːse]) was an influential family in Renaissance Italy. The titles of Duke of Parma and Piacenza, Duke of Latera and Duke of Castro were held by various members of the family.

Its most important members included Pope Paul III, Alessandro Farnese (a cardinal), Alexander Farnese, Duke of Parma and Piacenza (a military commander and Governor of the Spanish Netherlands), and Elisabeth Farnese, who became Queen of Spain and whose legacy was brought to her Bourbon descendants.

Pier Luigi Farnese (19 November 1503 – 10 September 1547) was the first Duke of Castro from 1537 to 1545 and the first Duke of Parma and Piacenza from 1545 to 1547. He was the illegitimate son of Cardinal Alessandro Farnese (who later became Pope Paul III). He became a soldier and participated in the Sack of Rome in 1527.

Odoardo Farnese (28 April 1612 – 11 September 1646), also known as Odoardo I Farnese to distinguish him from his grandson Odoardo II Farnese, was Duke of Parma, Piacenza and Castro from 1622 to 1646.