Complex sentence: This 18th-century "hôtel particulier" was originally located on the avenue des Champs-Élysées and was moved in 1929 to its present location, in a park beside the gardens of the Paris Observatory.
Split into simpler sentences: This 18th-century "hôtel particulier" was originally located on the avenue des Champs-Élysées. It was moved in 1929 to its present location in a park beside the gardens of the Paris Observatory.