The History of Scotland by Robert Lindsay of Pitscottie

For the Englishmen, believing that the Scots fled, pursued them so fast, that they were all out of breath. The first battle, led by Sir Bryan Latoun and Sir Robert Bowis had, in the midst of the battle, a thousand spears; and, on their right wing, five hundred hagbutters, and on their left, five hundred bows. Sir Ralph Ivers led the great battle, containing a thousand spears, thousand hagbutters, and as many bows. The Scots, at the beginning, had only three hundred men with the governor, and two hundred with the earl of Angus. The English hasted them to preveen the flight of the Scots, thinking, by one encounter, to put an end to the war. But they, lighting on the ambush of the Scots, all wearied, and out of breath, albeit they were disicouraged, yet, contemning the fewness of their number, set upon them. The Scots had providently gotten the advantage both of the wind and sun (being both in the south-west) so that the sun-beams and smoke of the powder took all fight from the English, besides, the Scottish-mens spears were an ell longer than the English; whereby the English were born down before they could reach at the Scots; who, encountring them most violently, beat back the vanguard upon the great battle; and fo, disordering both, put them to flight, killing their two leaders, Sir Ralph Ivers and Sir Bryan Latoun, and a great number of gentlemen and common soldiers, to the number of five hundred; with the loss of two Scottishmen, slain rakelesly by their own artillery. There were taken a thousand, whereof eighty were gentlemen. The governor, at night, returning to his standard, kneeled down, and gave solemn thanks: to God for the unexpected victory; the like whereof hath scarcely been read of, that so small-a number discomfited so great a host, and so well appointed. The chief of the captives were, Mr. Howard [aged 20] the queen's uncle, Mr. Hutchinson mayor of York, the lord Bowis, Sir John Withrington, many of the Herons and Sellies, and other gentlemen of the borders, and knights of great esteem. This battle was foughten in Teviotdale, at Ancram-muir, the ninth of March, one thousand five hundred and forty-five².

Note 1. George Howard, brother of Queen Catherine Howard of England.

Note 2. The battle was fought on 27th February 1545.