Colonel von Ehrentreuter had been enfeoffed with Loga and the neighbouring village of Logabirum by Count Ulrich II of East Frisia to pay off his considerable gambling debts.
Descendants of the von Wedel family, whose main residence today is Gödens Castle in the parish of Sande, occupied the Evenburg for centuries.
Only the foundation walls and the vault of the old transept in the centre were incorporated into the new residence, which was otherwise executed in the Neo-Gothic style; its architect being Richard Stueve from Hanover.
After extensive renovation work the Evenburg is now home to various institutions including the Education Academy of East Frisia and a college for grammar school teachers.
Its attractions include the long double avenue, which leads from the town of Leer to the castle, the baroque bastion (Vorburg) of 1703 (home to the district music school), the hallway, the remains of the old stables and the extensive landscaped park in the style of an English garden with paths to the Ledadeich (dyke).