Fortescue, Thomas, trans. The Forest, or, Collection of Histories (1571). 1.15, 2.14.

(perhaps) Newton, Thomas, comp. and trans. A Notable History of the Saracens (1575).

De Nicolay, Nicolas. The Navigations, Peregrinations and Voyages Made into Turkey . Trans. Thomas Washington (1585).

Ortelius, Abraham. Theatrum Orbis Terrarum (1570).

Perondinus, Petrus. Magni Tamerlanis Scytharum Imperatoris Vita (1553).

Whetstone, George. The English Mirror (1586). 1.3, 1.11-12.

REFERENCE : David Fuller, 'Introduction.' The Complete Works of Christopher Marlowe. 5 vols. Oxford: Clarendon Press, 1987-98. 5.xx-xxv.