The "Book of Lost Tales 2" contains a description of the 11 Houses of the Gondolindrim, known in canon only through Glorfindel of Gondolin of the House of the Golden Flower and Galdor of the Tree.

The House of the Harp had a harp of silver was blazoned on a field of black on their armour. Their heavy and squat leader Salgant was craven, and fawned upon Maeglin. He alone wore a harp of gold on his armour.
Encyclopedia entry originally written by atalante_star