Steigenberger Grandhotel Petersberg in Bonn-Königswinter

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Steigenberger Grandhotel Petersberg in Bonn-Königswinter to undergo complete modernisation in 2016

BONN, Germany, 2015-7-10 — /Travel PR News/ — The Grandhotel Petersberg in Bonn-Königswinter is a building steeped in history which…