Lute

A lute was a musical instrument. King John of England bore witness to a lute performance during a stay at Sir Ranulf Fitzwilliam's castle in 1215.

During another meal, the King called for a lute and gave a performance of his own. (TV: The King's Demons)

Wiggins, a lute-player, serenaded Lilith upon the instrument shortly before she killed him. (TV: The Shakespeare Code)

Behind the scenes
Gerald Flood, who played King John, didn't actually play the lute; he mimed to Jack Lindberg's pre-recording. (INFO: The King's Demons)