Richard (The Kingmaker) Neville 1st/16th Earl of Warwick, KG
Richard, known as The Kingmaker, was born on November 22nd, 1428.²   He died  due to at the Battle of Barnet at the age of 42 on April 14th, 1471 in Barnet, Hertfordshire, England.³ 

 Lady Anne (Isabel) de Beauchamp Countess of Warwick
Anne, known as Isabel, was born on September 6th, 1426 in Berkshire, England.⁴   She died at the age of 66 on September 20th, 1492.⁵ 

 Isabella Neville
Isabella was born on September 5th, 1451 in Warwick, Warwickshire, England.⁶   She died  due to of Tuberculosis at the age of 25 on December 21st, 1476 in Warwick, Warwickshire, England.  She was buried in Gloucester, Gloucestershire, England.^7 8 

• Death Notes

  Weir says death was rumored to be by poison.

 Lady Anne Neville
Anne was born on June 11th, 1456 in Warwick, Warwickshire, England.⁹   She died  due to of Consumption at the age of 28 on March 16th, 1485 in Westminster, London, England.  She was buried in Westminster, London, England.^10 11