List of works

• The Knights of Dark Renown (1969), set in the Kingdom of Jerusalem
  Kingdom of Jerusalem
  The Kingdom of Jerusalem was a Catholic kingdom established in the Levant in 1099 after the First Crusade. The kingdom lasted nearly two hundred years, from 1099 until 1291 when the last remaining possession, Acre, was destroyed by the Mamluks, but its history is divided into two distinct periods....
  
   during the reigns of Baldwin IV
  Baldwin IV of Jerusalem
  Baldwin IV of Jerusalem , called the Leper or the Leprous, the son of Amalric I of Jerusalem and his first wife, Agnes of Courtenay, was king of Jerusalem from 1174 to 1185. His full sister was Queen Sibylla of Jerusalem and his nephew through this sister was the child-king Baldwin V...
  
  , Baldwin V
  Baldwin V of Jerusalem
  Baldwin V of Jerusalem was the son of Sibylla of Jerusalem and her first husband, William of Montferrat...
  
   and Queen Sibylla
  Sibylla of Jerusalem
  Sibylla of Jerusalem was the Countess of Jaffa and Ascalon from 1176 and Queen of Jerusalem from 1186 to 1190. She was the eldest daughter of Amalric I of Jerusalem and Agnes of Courtenay, sister of Baldwin IV and half-sister of Isabella I of Jerusalem, and mother of Baldwin V of Jerusalem...
  
  .
• The Kings of Vain Intent (1970), sequel to the above, dealing with the Third Crusade
  Third Crusade
  The Third Crusade , also known as the Kings' Crusade, was an attempt by European leaders to reconquer the Holy Land from Saladin...
  
  , depicting Conrad of Montferrat
  Conrad of Montferrat
  Conrad of Montferrat was a northern Italian nobleman, one of the major participants in the Third Crusade. He was the de facto King of Jerusalem, by marriage, from 24 November 1190, but officially elected only in 1192, days before his death...
  
   as the villain: the US edition contains an additional chapter.
• The Villains of the Piece (1972) (published in the US as The Oath and the Sword), about the conflict between King Stephen
  Stephen of England
  Stephen , often referred to as Stephen of Blois , was a grandson of William the Conqueror. He was King of England from 1135 to his death, and also the Count of Boulogne by right of his wife. Stephen's reign was marked by the Anarchy, a civil war with his cousin and rival, the Empress Matilda...
  
   and Queen Matilda.
• The Devil is Loose (1974), a sequel to The Kings of Vain Intent, following the later career of Richard I of England
  Richard I of England
  Richard I was King of England from 6 July 1189 until his death. He also ruled as Duke of Normandy, Duke of Aquitaine, Duke of Gascony, Lord of Cyprus, Count of Anjou, Count of Maine, Count of Nantes, and Overlord of Brittany at various times during the same period...
  
  .
• The Wolf at the Door (1975), about John of England
  John of England
  John , also known as John Lackland , was King of England from 6 April 1199 until his death...
  
  .
• The Cannaways (1978), a story of a fictional eighteenth century family.
• The Cannaway Concern (1980), sequel to the above.
• The Edge of the Blade (1986).
• Demand the World (1990), based on the life of Eliza Lynch
  Eliza Lynch
  Eliza Lynch was the mistress of Francisco Solano López, president of Paraguay.-Early life:She was born Eliza Alicia Lynch in Charleville, County Cork, Ireland. She emigrated at the age of ten with her family to Paris to escape the Great Irish Famine...
  
  .