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Also, ca. 1400 the Hungerford family of Farleigh castle in western England used a design of three similarly-interlaced sickles as one of their heraldic "badges"; and the arms attributed to Ednywain ap Bradwen, founder of the "15th noble tribe" of north Wales, have three interlaced white serpents on a red shield. Reference: The Complete Book of Heraldry by Stephen Slater (ISBN 1843096986), pages 124 and 191 (see also external link http://www.liv.ac.uk/~spmr02/rings/snakes.html ).