What does a marshall do in middle age castle?

A marshal in a medieval castle served as the administrative officer responsible for enforcing order and discipline among castle personnel, organizing troop movements during battles, regulating trade, settling disputes, managing financial affairs, maintaining supplies, ensuring security, overseeing judicial proceedings, acting as the lord's deputy in his absence, and coordinating various activities within the castle's domain. The marshal played a crucial role in administrative, diplomatic, logistical, and martial aspects of daily life in a medieval castle.