Triple

Target entity: John II of Castile
Context triple: [Alfonso, Prince of Asturias, father, John II of Castile]

• A. John II of Castile chosen
  John II of Castile was a 15th-century king whose long but politically weak reign was dominated by powerful nobles and favorites, notably Álvaro de Luna, during a turbulent period in Iberian history.
• B. John I of Castile
  John I of Castile was a 14th-century king of Castile and León whose reign was marked by dynastic conflicts, attempts to claim the Portuguese crown, and efforts to strengthen royal authority on the Iberian Peninsula.
• C. Ferdinand III of Castile
  Ferdinand III of Castile was a 13th-century king of Castile and León renowned for his major role in the Reconquista and later canonization as a saint.
• D. Henry IV of Castile
  Henry IV of Castile was a 15th-century king whose troubled reign was marked by political instability, noble revolts, and disputes over the succession that paved the way for the rise of the Catholic Monarchs.
• E. Henry III of Castile
  Henry III of Castile was a late 14th- and early 15th-century king of Castile and León known for consolidating royal authority, curbing noble power, and strengthening the monarchy’s finances and foreign alliances.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.