Question: Who is the maternal grandfather of Marie Louise, Duchess Of Parma?

Knowledge 1: Marie Louise, Duchess of Parma
Marie Louise (Maria Ludovica Leopoldina Franziska Therese Josepha Lucia; Italian: "Maria Luigia Leopoldina Francesca Teresa Giuseppa Lucia"; 12 December 1791 – 17 December 1847) was an Austrian archduchess who reigned as Duchess of Parma from 1814 until her death.She was Napoleon's second wife and, as such, Empress of the French from 1810 to 1814.As the eldest child of the Habsburg Emperor Francis II of Austria and his second wife, Maria Theresa of Naples and Sicily, Marie Louise grew up during a period of continuous 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.Marie Louise agreed to the marriage despite being raised to despise France.She was adored by Napoleon, who had been eager to marry a member of one of Europe's leading royal houses to cement his relatively young Empire.With Napoleon, she bore a son, styled the King of Rome at birth, later Duke of Reichstadt, who briefly succeeded him as Napoleon II.Napoleon's fortunes changed dramatically in 1812 after his failed invasion of Russia.The European powers, including Austria, resumed hostilities towards France in the War of the Sixth Coalition, which ended with the abdication of Napoleon and his exile to Elba.The 1814 Treaty of Fontainebleau handed over the Duchies of Parma, Piacenza and Guastalla to Empress Marie Louise.She ruled the duchies until her death.Marie Louise married morganatically twice after Napoleon's death in 1821.Her second husband was Count Adam Albert von Neipperg (married 1821), an equerry she met in 1814.She and Neipperg had three children.After Neipperg's death, she married Count Charles-René de Bombelles, her chamberlain, in 1834.Marie Louise died in Parma in 1847. [SEP] Knowledge 2: Maria Theresa of Naples and Sicily
Maria Theresa of Naples and Sicily (6 June 1772 – 13 April 1807) was the last Holy Roman Empress and the first Empress of Austria by marriage to Francis II, Holy Roman Emperor.She was the eldest daughter of Ferdinand IV & III of Naples and Sicily (later Ferdinand I of the Two Sicilies) (1751–1825) and Marie Caroline of Austria (1752–1814).
Knowledge 1: Marie Louise, Duchess of Parma
Marie Louise (Maria Ludovica Leopoldina Franziska Therese Josepha Lucia; Italian: "Maria Luigia Leopoldina Francesca Teresa Giuseppa Lucia"; 12 December 1791 – 17 December 1847) was an Austrian archduchess who reigned as Duchess of Parma from 1814 until her death.She was Napoleon's second wife and, as such, Empress of the French from 1810 to 1814.As the eldest child of the Habsburg Emperor Francis II of Austria and his second wife, Maria Theresa of Naples and Sicily, Marie Louise grew up during a period of continuous 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.Marie Louise agreed to the marriage despite being raised to despise France.She was adored by Napoleon, who had been eager to marry a member of one of Europe's leading royal houses to cement his relatively young Empire.With Napoleon, she bore a son, styled the King of Rome at birth, later Duke of Reichstadt, who briefly succeeded him as Napoleon II.Napoleon's fortunes changed dramatically in 1812 after his failed invasion of Russia.The European powers, including Austria, resumed hostilities towards France in the War of the Sixth Coalition, which ended with the abdication of Napoleon and his exile to Elba.The 1814 Treaty of Fontainebleau handed over the Duchies of Parma, Piacenza and Guastalla to Empress Marie Louise.She ruled the duchies until her death.Marie Louise married morganatically twice after Napoleon's death in 1821.Her second husband was Count Adam Albert von Neipperg (married 1821), an equerry she met in 1814.She and Neipperg had three children.After Neipperg's death, she married Count Charles-René de Bombelles, her chamberlain, in 1834.Marie Louise died in Parma in 1847. [SEP] Knowledge 2: Maria Leopoldina of Austria
Dona Maria Leopoldina of Austria (22 January 1797 – 11 December 1826) was an archduchess of Austria, Empress consort of Brazil and Queen consort of Portugal.She was born "Caroline Josepha Leopoldine Franziska Ferdinanda of Habsburg-Lorraine" in Vienna, Austria, the daughter of Holy Roman Emperor Francis II, and his second wife, Maria Teresa of Naples and Sicily.Among her many siblings were Emperor Ferdinand I of Austria and Marie Louise, Duchess of Parma, the wife of Napoleon Bonaparte.
Knowledge 1: Marie Louise, Duchess of Parma
Marie Louise (Maria Ludovica Leopoldina Franziska Therese Josepha Lucia; Italian: "Maria Luigia Leopoldina Francesca Teresa Giuseppa Lucia"; 12 December 1791 – 17 December 1847) was an Austrian archduchess who reigned as Duchess of Parma from 1814 until her death.She was Napoleon's second wife and, as such, Empress of the French from 1810 to 1814.As the eldest child of the Habsburg Emperor Francis II of Austria and his second wife, Maria Theresa of Naples and Sicily, Marie Louise grew up during a period of continuous 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.Marie Louise agreed to the marriage despite being raised to despise France.She was adored by Napoleon, who had been eager to marry a member of one of Europe's leading royal houses to cement his relatively young Empire.With Napoleon, she bore a son, styled the King of Rome at birth, later Duke of Reichstadt, who briefly succeeded him as Napoleon II.Napoleon's fortunes changed dramatically in 1812 after his failed invasion of Russia.The European powers, including Austria, resumed hostilities towards France in the War of the Sixth Coalition, which ended with the abdication of Napoleon and his exile to Elba.The 1814 Treaty of Fontainebleau handed over the Duchies of Parma, Piacenza and Guastalla to Empress Marie Louise.She ruled the duchies until her death.Marie Louise married morganatically twice after Napoleon's death in 1821.Her second husband was Count Adam Albert von Neipperg (married 1821), an equerry she met in 1814.She and Neipperg had three children.After Neipperg's death, she married Count Charles-René de Bombelles, her chamberlain, in 1834.Marie Louise died in Parma in 1847. [SEP] Knowledge 2: Margaret of Parma
Margaret of Parma (5 July 1522 – 18 January 1586) was Governor of the Netherlands from 1559 to 1567 and from 1578 to 1582.She was the illegitimate daughter of the then 22-year-old Holy Roman Emperor Charles V and Johanna Maria van der Gheynst.She was a Duchess of Florence and a Duchess of Parma and Piacenza by marriage.

Answer: Ferdinand I of the Two Sicilies