THE EMBASSY TO THE PORTE (1716-1718)--I Montagu loses his place at the Treasury--His antagonism against Walpole--Lady Mary, "Dolly" Walpole, and Molly Skerritt--The Earl and Countess of Mar leave England--Montagu appointed Ambassador to the Porte--Leaves England for Constantinople, accompanied by his wife-- Letters during the Embassy to Constantinople--Rotterdam--Vienna--Lady Mary at Court--Her gown--Her interest in clothes--Viennese society-- Gallantry--Lady Mary's experience--Court Tarrocco--Precedence at Vienna--A nunnery--The Montagus visit the German Courts--A dangerous drive--Prince Frederick (afterwards Prince of Wales)--Herrenhausen.