Complex sentence: After the completion of his university career at Göttingen, he was appointed second director of the Archive of his native town, and subsequently went to Wetzlar, the seat of the imperial law courts, as secretary to the Saxe-Coburg-Gotha legation.
Split into simpler sentences: After the completion of his university course at Göttingen, he was appointed second director of the Gotha Archive. He subsequently went to Wetzlar, the seat of the imperial law courts, as secretary to the Saxe-Coburg-Gotha legation.