Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: Sir John Grey of Groby | Statement: [Thomas Grey, 1st Marquess of Dorset, father, Sir John Grey of Groby]

Target entity: Sir John Grey of Groby
Context triple: [Thomas Grey, 1st Marquess of Dorset, father, Sir John Grey of Groby]

• A. John Grey, 2nd Baron Grey de Ruthyn
  John Grey, 2nd Baron Grey de Ruthyn, was an English medieval nobleman and member of the prominent Grey family who held the barony of Ruthin.
• B. The Lord Grey of Naunton
  The Lord Grey of Naunton was a British peer and colonial administrator who notably served as the final Governor of Northern Ireland before the office was abolished.
• C. Sir Arthur Wardour
  Sir Arthur Wardour is a proud, antiquarian Scottish baronet in Sir Walter Scott’s novel "The Antiquary," known for his stubbornness, social pretensions, and financial imprudence.
• D. Reynold Grey, 2nd Baron Grey de Ruthyn
  Reynold Grey, 2nd Baron Grey de Ruthyn, was an English nobleman of the late 14th and early 15th centuries, notable for his role in the Welsh Marches and his involvement in the conflicts surrounding Owain Glyndŵr’s rebellion.
• E. John Grey, 1st Earl of Tankerville
  John Grey, 1st Earl of Tankerville, was an English nobleman of the early 15th century who rose to prominence during the Hundred Years’ War and was rewarded with an earldom in the English-controlled territories in France.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Sir John Grey of Groby
Triple: [Thomas Grey, 1st Marquess of Dorset, father, Sir John Grey of Groby]

Sir John Grey of Groby was a 15th-century English nobleman and Lancastrian knight whose death in battle left his widow, Elizabeth Woodville, free to marry King Edward IV, thereby significantly influencing the politics of the Wars of the Roses.

Target entity: Sir John Grey of Groby
Target entity description: Sir John Grey of Groby was a 15th-century English nobleman and Lancastrian knight whose death in battle left his widow, Elizabeth Woodville, free to marry King Edward IV, thereby significantly influencing the politics of the Wars of the Roses.

• A. John Grey, 2nd Baron Grey de Ruthyn
  John Grey, 2nd Baron Grey de Ruthyn, was an English medieval nobleman and member of the prominent Grey family who held the barony of Ruthin.
• B. The Lord Grey of Naunton
  The Lord Grey of Naunton was a British peer and colonial administrator who notably served as the final Governor of Northern Ireland before the office was abolished.
• C. Sir Arthur Wardour
  Sir Arthur Wardour is a proud, antiquarian Scottish baronet in Sir Walter Scott’s novel "The Antiquary," known for his stubbornness, social pretensions, and financial imprudence.
• D. Reynold Grey, 2nd Baron Grey de Ruthyn
  Reynold Grey, 2nd Baron Grey de Ruthyn, was an English nobleman of the late 14th and early 15th centuries, notable for his role in the Welsh Marches and his involvement in the conflicts surrounding Owain Glyndŵr’s rebellion.
• E. John Grey, 1st Earl of Tankerville
  John Grey, 1st Earl of Tankerville, was an English nobleman of the early 15th century who rose to prominence during the Hundred Years’ War and was rewarded with an earldom in the English-controlled territories in France.
• F. None of above. chosen