Question: Who is Archduke Leopold Of Austria, Prince Of Tuscany's maternal grandfather?

Knowledge 1: Archduke Leopold of Austria, Prince of Tuscany
Archduke Leopold Maria of Austria, Prince of Tuscany (born in Zagreb 30 January 1897 - died Willimantic,Connecticut 14 March 1958) was the second son of Archduke Leopold Salvator, Prince of Tuscany and Infanta Blanca of Spain.At the fall of Habsburg monarchy he remained in Austria and recognized the new republic in order to marry Dagmar, Baroness von Nicolics-Podrinska.The couple had one daughter.After divorcing his wife in 1931, Leopold eventually emigrated to the United States where he became a naturalized American citizen under the name Leopold Lorraine, and where he remarried.He died in 1958 in Connecticut. [SEP] Knowledge 2: Infanta Blanca of Spain
Infanta Blanca of Spain (7 September 1868 – 25 October 1949) was the eldest child of Carlos, Duke of Madrid, Carlist claimant to the throne of Spain and his wife Princess Margherita of Bourbon-Parma.Blanca was a member of the House of Bourbon and - according to the Carlists - an Infanta of Spain by birth.In 1889 she married Archduke Leopold Salvator of Austria.The couple had ten children.The family left Austria after the end of the Monarchy and finally settled in Barcelona.When the male line of Blanca's family died out at the death of her uncle, Alfonso Carlos, Duke of San Jaime, some of the Carlists recognized her as the legitimate heiress to the Spanish throne.
Knowledge 1: Archduke Leopold of Austria, Prince of Tuscany
Archduke Leopold Maria of Austria, Prince of Tuscany (born in Zagreb 30 January 1897 - died Willimantic,Connecticut 14 March 1958) was the second son of Archduke Leopold Salvator, Prince of Tuscany and Infanta Blanca of Spain.At the fall of Habsburg monarchy he remained in Austria and recognized the new republic in order to marry Dagmar, Baroness von Nicolics-Podrinska.The couple had one daughter.After divorcing his wife in 1931, Leopold eventually emigrated to the United States where he became a naturalized American citizen under the name Leopold Lorraine, and where he remarried.He died in 1958 in Connecticut. [SEP] Knowledge 2: Archduke Anton of Austria
Archduke Anton of Austria (Anton Maria Franz Leopold Blanka Karl Joseph Ignaz Raphael Michael Margareta Nicetas von Habsburg-Lorraine; Vienna, 20 March 1901 – Salzburg, 22 October 1987) was an Archduke of Austria and Prince of Tuscany.He was the seventh of ten children born to Archduke Leopold Salvator of Austria, Prince of Tuscany, and Infanta Blanca of Spain, daughter of Carlos, Duke of Madrid.
Knowledge 1: Infanta Blanca of Spain
Infanta Blanca of Spain (7 September 1868 – 25 October 1949) was the eldest child of Carlos, Duke of Madrid, Carlist claimant to the throne of Spain and his wife Princess Margherita of Bourbon-Parma.Blanca was a member of the House of Bourbon and - according to the Carlists - an Infanta of Spain by birth.In 1889 she married Archduke Leopold Salvator of Austria.The couple had ten children.The family left Austria after the end of the Monarchy and finally settled in Barcelona.When the male line of Blanca's family died out at the death of her uncle, Alfonso Carlos, Duke of San Jaime, some of the Carlists recognized her as the legitimate heiress to the Spanish throne. [SEP] Knowledge 2: Archduke Anton of Austria
Archduke Anton of Austria (Anton Maria Franz Leopold Blanka Karl Joseph Ignaz Raphael Michael Margareta Nicetas von Habsburg-Lorraine; Vienna, 20 March 1901 – Salzburg, 22 October 1987) was an Archduke of Austria and Prince of Tuscany.He was the seventh of ten children born to Archduke Leopold Salvator of Austria, Prince of Tuscany, and Infanta Blanca of Spain, daughter of Carlos, Duke of Madrid.

Answer: Carlos, Duke of Madrid