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The Lacy or de Lacy knot is a decorative heraldic knot,[1] the badge of the de Lacy family. It features in the crest of the borough of Burnley and heraldic badge of Kirklees.
- ^ Charles Boutell, English heraldry. With 450 illus. drawn and engraved on wood by R.B. Utting, Cassell, Petter & Galpin, 1867, p. 135