Complex sentence: Instead he was dispatched to Munich to become the Minister Resident in the Kingdom of Bavaria and the Kingdom of Württemberg, where his workload was relatively light as all major diplomatic intercourse taking place at the consulate in Berlin.
Split into simpler sentences: Instead he was dispatched to Munich to become the Minister Resident in the Kingdom of Bavaria and the Kingdom of Württemberg. His work there was relatively light, all major diplomatic intercourse taking place at the consulate in Berlin.