Tristan slays the dragon
Full page drawing of Tristan in armour on horseback slaying the dragon with his lance, with a magpie on a branch in the foreground.
Alan of Lille, Isidore
Tristan en prose with interpolations of Lancelot en prose (ff. 141-151)
2nd half of the 13th century or 1st quarter of the 14th century
From The British Library: http://www.bl.uk/catalogues/illuminatedmanuscripts/ILLUMIN.ASP?Size=mid&IllID=58822
JPG, 999x1500 pixels
England or France