Okay, this is actually a super specific question mixing Korean and Indonesian terms—'Putri Kerajaan' means 'royal princess' in Malay/Indonesian, so we're talking about the royal princess's hanbok during the Joseon dynasty. The defining materials and accessories weren't just about beauty; they were rigid codes of status and ritual.
First, materials: the outermost robe, the 'wonsam,' for a princess was made of luxurious silk, often damask or satin-weave, in prescribed colors like deep red, magenta, or green. The fabric quality and sheen were immediately visible markers of royal blood. Underneath, multiple layers of fine silk and ramie created that elegant, voluminous silhouette. Commoners couldn't touch these grades of material.
Accessories were a whole system. The headpiece was key—a 'jokduri' or 'hwagwan,' a ceremonial crown adorned with kingfisher feathers, pearls, and gemstones, far more elaborate than a noblewoman's 'jang-ot' hood. The 'daenggi' ribbons tying her braids were of specific colors and lengths. She'd also wear a 'norigae,' a pendant ornament fastened to her jacket, often with jade, coral, or amber charms symbolizing longevity and nobility. Jewelry like 'binyeo' hairpins were more refined but less ostentatious than a queen's, walking a line between royal duty and Confucian modesty.
What's interesting is how these items signaled her liminal position—royal but not sovereign, destined for political marriage. Her attire had to display supreme elegance yet also a kind of restrained readiness for her role as a diplomatic asset. You can see the weight of that in the heaviness of the wonsam and the intricate, almost burdensome headpieces.