There are 2 books in the Constance of York series. The newest book is Hanley Castle which came out in 2022.

1
Walking Among Lions

Book cover of Walking Among Lions
Constance of York, a cousin of King Richard II, is inducted into the Order of the Garter aged 10. High in the favour of the King and Queen, she is soon summoned to the court to attend Anne of Bohemia. However, not only is England in danger of a French…
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2
Hanley Castle

Book cover of Hanley Castle
Constance of York, no longer in the Queen's household, is more interested in her marriage than politics. But soon the pull of King Richard's court, and her ambition and that of her husband, Thomas Despenser, prevail. There are many scores to settle as the King takes his revenge on the…