How commanders give orders to serving royals

Would commanders struggle to exercise authority once a member of the royal family reached senior military rank?

The social situation could be delicate, but commissioned rank governs military command, so a superior officer can still give the royal subordinate orders.

Social influence and military authority operate differently. Officers receive their commissions from the monarch, but operational command still follows the rank attached to that commission. A commander can therefore issue orders to a serving royal who holds a subordinate rank. The arrangement may create social sensitivities, yet the formal chain remains workable because nobility and command authority are distinct.