Richard Plantagenet, 3rd Duke of York

Target entity: Richard Plantagenet, 3rd Duke of York
Context triple: [Richard III of England, father, Richard Plantagenet, 3rd Duke of York]

• A. Edmund of Langley, 1st Duke of York
  Edmund of Langley, 1st Duke of York, was a 14th-century English prince and nobleman who founded the House of York, a key dynasty in the Wars of the Roses.
• B. Thomas Beaufort, Duke of Exeter
  Thomas Beaufort, Duke of Exeter, was an early 15th-century English nobleman, military commander, and half-uncle of King Henry V who played a prominent role in the Hundred Years’ War and royal government.
• C. Lionel of Antwerp, 1st Duke of Clarence
  Lionel of Antwerp, 1st Duke of Clarence, was a 14th-century English prince and nobleman whose lineage played a key role in the later Wars of the Roses through the Yorkist claim to the throne.
• D. Roger Mortimer, 1st Earl of March
  Roger Mortimer, 1st Earl of March, was a powerful 14th-century English nobleman who led the rebellion against King Edward II and effectively ruled England during the early reign of Edward III before being overthrown and executed.
• E. Edmund Tudor, Duke of Somerset
  Edmund Tudor, Duke of Somerset, was a short-lived English prince of the early Tudor dynasty, known primarily as the younger son of King Henry VII of England and Elizabeth of York.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Richard Plantagenet, 3rd Duke of York
Target entity description: Richard Plantagenet, 3rd Duke of York was a key 15th-century English noble and claimant to the throne whose dynastic struggle with the Lancastrians helped ignite the Wars of the Roses and paved the way for the Yorkist kings.

• A. Edmund of Langley, 1st Duke of York
  Edmund of Langley, 1st Duke of York, was a 14th-century English prince and nobleman who founded the House of York, a key dynasty in the Wars of the Roses.
• B. Thomas Beaufort, Duke of Exeter
  Thomas Beaufort, Duke of Exeter, was an early 15th-century English nobleman, military commander, and half-uncle of King Henry V who played a prominent role in the Hundred Years’ War and royal government.
• C. Lionel of Antwerp, 1st Duke of Clarence
  Lionel of Antwerp, 1st Duke of Clarence, was a 14th-century English prince and nobleman whose lineage played a key role in the later Wars of the Roses through the Yorkist claim to the throne.
• D. Roger Mortimer, 1st Earl of March
  Roger Mortimer, 1st Earl of March, was a powerful 14th-century English nobleman who led the rebellion against King Edward II and effectively ruled England during the early reign of Edward III before being overthrown and executed.
• E. Edmund Tudor, Duke of Somerset
  Edmund Tudor, Duke of Somerset, was a short-lived English prince of the early Tudor dynasty, known primarily as the younger son of King Henry VII of England and Elizabeth of York.
• F. None of above. chosen