The Napoleonic emendation of the Piazza San Marco in Venice calls for little comment. There Sansovino’s church of San Zimignan at the end was removed in 1807 and replaced with a structure by G. M. Solis (1745-1823) more consonant with the fifteenth- and sixteenth-century Procurazie by Buon and by Scamozzi along the sides. Solis’s emendation finally completed, and not unworthily, this most magnificent piece of urbanism in the form we now know it. La Fenice, the Venice opera-house, had been rebuilt by Giannantonio Selva (1751-1819) in 1786-92; of his work, however, only the rather dull façade remains. The exquisite Neo-Rococo interior is, rather surprisingly, of the second quarter of the nineteenth century, being by the brothers Tommaso and G. B. Meduna (1810-?), who restored the theatre after a fire in 1836. Ever since the fifteenth century Italian architects had worked much abroad, generally bringing with them the latest stylistic developments. Now that day was largely over; France, England, and very soon Germany were exporting taste as Italy had done for so many previous centuries. After the Second World War her position as architectural mentor began, at least, to revive again (see Chapter 25). The employment of foreign architects by Russian Tsars was a well-established tradition by the late eighteenth century;[33] most of them had been Italians, but one, Charles Cameron (_c._ 1714-1812), who represents like Adam the transition from Academic to Romantic Classicism, was Scottish.[34] There had also been a French designer of the most original order working in Russia early in the eighteenth century, Nicholas Pineau (1684-1754); he even formed his mature style there, initiating the ‘Pittoresque’ phase of the Rococo well before he returned to France. Half a century later Catherine the Great acquired the greater part of the drawings of Clérisseau, friend and mentor of Adam and also of Jefferson. Catherine’s grandson, Alexander I, was so esteemed as a liberal ruler in what had once been the most advanced of French architectural circles that Ledoux, long left behind as a builder by Revolution and Empire, dedicated to him his book on architecture in 1804, as has already been noted.