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 King had white, gold and red as their colours, and their emblems were the moon, the sun and the scarlet heart (representing the heart of Fingon torn out by Orcs at the Nirnaeth Arnoediad).
Encyclopedia entry originally written by atalante_star