Marshal of the East-mark

From Tolkien Gateway

Marshal of the East-mark was a military rank of the Rohirrim, signifying the commander of the armies of eastern Rohan. The title was created by the new King Éomer after the War of the Ring, and the first Rider to hold it was the King's lieutenant, Elfhelm.[1]

References

Ranks of the Rohirrim
First Marshal of the Riddermark · Second Marshal of the Riddermark · Third Marshal of the Riddermark · Marshal of the East-mark · Marshal of the West-mark · Underking