Serg Vorbarra was the Crown Prince of Barrayar during Ezar Vorbarra's reign. "The owner of the second voice also wore dress greens, more heavily encrusted with gilt than any she had ever seen. Jeweled decorations on his breast glinted and winked like lizards' eyes in the light from Vorkosigan's desk lamp. He was about thirty, black haired, with a rectangular tense face, hooded eyes, and thin lips compressed now with annoyance." ―Prince Serg as seen by Cordelia