1852 Queen Dona Maria II of Portugal possibly by Guglielmo Faija (Royal collection)
From Wikimedia; spots removed throughout image with Photoshop by gogm.
This portrait shows a double lace collar and a straight coiffure and bun adorned with ribbons and a diamond circlet.
Keywords: 1852, Faija, Queen Maria da Gloria, Queen, Bragança family, Portuguese, straight coiffure, bun, ribbon headdress, circlet, high neckline, collar, lace, earrings, brooch