c. 1450. Holland, Howlat, 382. The armes of the Dowglass Of Scotland the wer wall.
1533. Bellenden, Livy, II. xxii. (S.T.S.), I. 222. Þai war campit to be ane were-wall for defence of Veanis. Ibid. (1536), Cron. Scot., XIV. viii. (1821), II. 383. The surname of Dowglas, quhilkis war evir the sicker targe and weirwal of Scotland aganis Inglismen.