Considering the Palais Coburg in Vienna?
A VT member wrote the following comment about visiting Vienna:
Schonbrunn - Franz Joshep's study by mvtouring
FJ ascended to the throne at the age of 18 years. He had an enormous workload everyday and his days started at 5 oclock in the morning. He spend most of his time at his desk. Here he would study papers and be served both breakfast and lunch. The emperor paid little attention to splendour in his private rooms.