Otrar (Tartar Invasion of Kharismia).
This city was besieged, 1219, by 200,000 Mongols, under Oktai and Zagatai, sons of Genghiz Khan, and defended by a garrison of 60,000, under Gazer Khan. The place was entered after a four months' siege, by which time the garrison was reduced to 20,000 men, but with this remnant Gazer Khan held out in the citadel for another month.
Otterburn (Scottish Wars).
Fought August 19, 1388, between 9,000 English, under Henry Percy (Hotspur) and a greatly inferior force of Scots, under Earls Douglas and Murray. Hotspur attacked the Scottish entrenchments, and was totally defeated, with a loss of about 2,000. The battle is celebrated in the old ballad of "Chevy Chace."