Considering his position as the right-hand and attendant of Duke Macheze, it wasn't hard for Urien to enter the palace. However, in the case of meeting the Crown Prince, it might not be the same.
He entered the main palace and then made his way to the Crown Prince's chamber. When he arrived there, he saw Rigor near the door and it relieved him a bit as Rigor was the only one he knew among the Crown Prince's men.
When he saw the Duke's right-hand man approaching him alone, Rigor was a bit surprised. It was not that he never saw Urien at the palace but whenever he saw him, it was always with Duke Macheze.
"Rigor."
"What brings you here, Urien?" The Crown Prince's right-hand man promptly asked. "You're not with the Duke today?"
Urien nodded and briefly glanced at the door. "Is His Highness here?" He asked Rigor and added, "Do you think I could meet him?"