That's up to you where you want her private quarters to be. Just to also clarify, the clerics don't always have to be in their robed uniform. It's just only when they're on duty. When off-duty and posing as just some soldier or servant about the castle, that's all they are to those around them. Nobody knows they're clerics but other clerics, and sometimes not even the king if he hasn't seen that cleric before in uniform.