Aldburg

Aldburg was one of the oldest settlements of Rohan. It was recorded to have been built by Eorl in the region known as the Folde, some miles to the southeast of Edoras. It was therefore Rohan's first capital. Though Eorl's son Brego moved the capital to Edoras, Aldburg remained a seat of noblemen.
At the time of the War of the Ring, it was the home of King Théoden's nephew Éomer, who was the third Marshal of the Mark.