 Giacomo Quarenghi provided regular consultancy to Catherine, liaising with Starov; English gardener John Bush was appointed to do the landscaping in 1787.In order to accomplish the task, Starov obtained copies of Étienne-Louis Boullée's grandiose designs for rebuilding the Versailles Palace.His design for Pella, modeled on Boullée's unexecuted project, pleased the Empress so much that she declared to her European correspondents