The Miyagi-mon Gate was the furthest outside gate, just outside was called the Miya-mon gate, the gate for the inside fence was called the Ko-mon Gate.
門は最も外側に宮城門（みやぎもん）が位置し、内裏外郭の門を宮門（みやもん）、内郭の門を閤門（こうもん）という。