(perhaps) De Vega, Lope. El Gran Duque de Moscovia (Spanish play, 1617).

(perhaps) Heywood, Thomas. The Royal King and Loyal Subject (perf. 1602).

(perhaps) Painter, William. The Palace of Pleasure (collection of tales, 1566-7). Tome 2, Novel 4.

REFERENCE : G.E. Bentley. The Jacobean and Caroline Stage. 6 vols. Oxford: Oxford University Press, 1941-68.