I had trouble figuring out how to spell the location names, but Brussels is predominantly Francophone.
This image has been modified with Photoshop to remove curving seen in the original.
This is one of several portraits of Isabel wearing a saya, but her ruff is a one deeply goffered band of lace-edged material.
Keywords: Hermans - Paul, Infanta Isabel Clara Eugenia, Princess, Spanish, Habsburg family, curly coiffure, jeweled headdress, high enclosing neckline, neck ruff, lace, over-dress, hanging sleeves, lapels, over-skirt, under-dress, farthingale, bodice, slashed under-sleeves, tabbed false under-sleeves, cuffs, stomacher, vee waistline, draped necklace, earrings, jeweled crucifix, handkerchief, fan, saya