Rionach Sayre owned a brooch in the shape of the Gordian Knot, which was inherited by her daughter Isolt, and was the only object Isolt took with her upon her flight from Gormlaith Gaunt's cottage other than Gaunt's wand. The Gordian Knot would later feature into the symbolism of Ilvermorny School of Witchcraft and Wizardry. A depiction of the Gordian Knot was set into the floor of the school's Entrance hall, and was where new students stand upon their sorting. Robes worn by Ilvermorny students were fastened with the Gordian Knot.
- Pottermore (Mentioned only)