Giacomo Quarenghi
...that the Italian architect Giacomo Quarenghi was the most prolific practitioner of Palladian architecture in Saint Petersburg?
...that the Italian architect <b id="mwAWc"><a href="./Giacomo_Quarenghi" id="mwAWg" rel="mw:WikiLink" title="Giacomo Quarenghi">Giacomo Quarenghi</a></b> was the most prolific practitioner of <a href="./Palladian_architecture" id="mwAWk" rel="mw:WikiLink" title="Palladian architecture">Palladian architecture</a> in <a href="./Saint_Petersburg" id="mwAWo" rel="mw:WikiLink" title="Saint Petersburg">Saint Petersburg</a>?