Sins of Inheritance (Templar Knight Mysteries Book 9)

When a Lincoln draper is slain by arrowshot as he sets out on pilgrimage to the shrine of St. James of Compostela in Spain, his death is at first thought to have been perpetrated by outlaws, but Gianni soon discovers a reason to believe otherwise and, to his delight, Lady Nicolaa gives her consent for him to lead an investigation into the murder.
Meanwhile, an emissary arrives from Italy with the astonishing declaration that Gianni is the missing son of an Italian nobleman, and Templar Bascot de Marins and Nicolaa do their utmost to help the bewildered lad decide whether or not the claim is valid.