Her Wikipedia article is here. She was the daughter of Amalia van Solms and she is the girl in the amber-colored dress in this family portrait.
Princess Albertina Agnes is simply, but luxuriously, dressed in this Netscher portrait from about 1675.
Keywords: 1675, Netscher, Albertine Agnes van Nassau, Princes van Oranje, Oranje-Nassau family, Princess, Dutch, curly coiffure, veil, earrings, necklace, chemise, modesty piece, scoop neckline, elbow length puffed under-sleeves, tight cuffs, fitted bodice, elbow length puffed over-sleeves, vee wasitline, full skirt