Antique Frame Fleur-de-Lis Collection. What is the fleur-de-lis?

Fleur de Lis Antique Frame
Earrings 18-karat yellow gold, rubies and pink sapphires:: The fleur-de-lis in short; emblem to sovereignty, a symbol of purity, pomp, ceremonious, heraldry, stylized flower, royalty, 1100’s, trinity, three, a lily or an iris? by Katrina Kelly