Frederick I, Duke of Saxe-Gotha-Altenburg

Target entity: Frederick I, Duke of Saxe-Gotha-Altenburg
Context triple: [Frederick II, Duke of Saxe-Gotha-Altenburg, father, Frederick I, Duke of Saxe-Gotha-Altenburg]

• A. Frederick II, Duke of Saxe-Gotha-Altenburg
  Frederick II, Duke of Saxe-Gotha-Altenburg was an 18th-century German prince of the Ernestine Wettin line, noted as the ruler of the small Thuringian duchy of Saxe-Gotha-Altenburg and the father of Princess Augusta, who became Princess of Wales.
• B. Frederick, Duke of Saxe-Altenburg
  Frederick, Duke of Saxe-Altenburg was a 19th-century German nobleman who ruled the small Thuringian duchy of Saxe-Altenburg and belonged to the Ernestine branch of the Wettin dynasty.
• C. Frederick, Duke of Mecklenburg-Grabow
  Frederick, Duke of Mecklenburg-Grabow was a 17th–18th century German nobleman of the House of Mecklenburg who held the ducal title in the Mecklenburg-Grabow line and was the father of Sophia Louise of Mecklenburg-Schwerin, a Queen consort of Prussia.
• D. Frederick Charles Ferdinand, Duke of Brunswick-Bevern
  Frederick Charles Ferdinand, Duke of Brunswick-Bevern, was an 18th-century German prince and Prussian field marshal from a cadet branch of the House of Brunswick who distinguished himself in the Seven Years' War.
• E. Duke of Saxe-Gotha-Altenburg
  The Duke of Saxe-Gotha-Altenburg was the hereditary ruler of the Ernestine duchy of Saxe-Gotha-Altenburg within the Holy Roman Empire and later the German Confederation.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Frederick I, Duke of Saxe-Gotha-Altenburg
Target entity description: Frederick I, Duke of Saxe-Gotha-Altenburg, was an 18th-century German prince of the Ernestine Wettin line who ruled the duchy of Saxe-Gotha-Altenburg and continued its development as a minor but culturally active state within the Holy Roman Empire.

• A. Frederick II, Duke of Saxe-Gotha-Altenburg
  Frederick II, Duke of Saxe-Gotha-Altenburg was an 18th-century German prince of the Ernestine Wettin line, noted as the ruler of the small Thuringian duchy of Saxe-Gotha-Altenburg and the father of Princess Augusta, who became Princess of Wales.
• B. Frederick, Duke of Saxe-Altenburg
  Frederick, Duke of Saxe-Altenburg was a 19th-century German nobleman who ruled the small Thuringian duchy of Saxe-Altenburg and belonged to the Ernestine branch of the Wettin dynasty.
• C. Frederick, Duke of Mecklenburg-Grabow
  Frederick, Duke of Mecklenburg-Grabow was a 17th–18th century German nobleman of the House of Mecklenburg who held the ducal title in the Mecklenburg-Grabow line and was the father of Sophia Louise of Mecklenburg-Schwerin, a Queen consort of Prussia.
• D. Frederick Charles Ferdinand, Duke of Brunswick-Bevern
  Frederick Charles Ferdinand, Duke of Brunswick-Bevern, was an 18th-century German prince and Prussian field marshal from a cadet branch of the House of Brunswick who distinguished himself in the Seven Years' War.
• E. Duke of Saxe-Gotha-Altenburg
  The Duke of Saxe-Gotha-Altenburg was the hereditary ruler of the Ernestine duchy of Saxe-Gotha-Altenburg within the Holy Roman Empire and later the German Confederation.
• F. None of above. chosen