The bourgeoisie (Eng.: ; ) is a polysemous French term that can mean: 

The "Bourgeoisie", in its original sense, is intimately linked to the existence of cities recognized as such by their urban charters (e.g. municipal charter, town privileges, German town law) so there was no bourgeoisie "outside the walls of the city" beyond which the people were "peasants" submitted to the stately courts and manorialism (except for the traveling "Fair bourgeoisie" living outside urban territories, who retained their city rights and domicile). 

In Marxist philosophy the bourgeoisie is the social class that came to own the means of production during modern industrialization and whose societal concerns are the value of property and the preservation of capital, to ensure the perpetuation of their economic supremacy in society. Joseph Schumpeter saw the creation of new bourgeoisie as the driving force behind the capitalist engine, particularly entrepreneurs who took risks to bring innovation to industries and the economy through the process of creative destruction. The Modern French word "bourgeois" derived from the Old French "burgeis" (walled city), which derived from "bourg" (market town), from the Old Frankish "burg" (town); in other European languages, the etymologic derivations are the Middle English "burgeis", the Middle Dutch "burgher", the German "Bürger", the Modern English "burgess", and the Polish "burżuazja", which occasionally is synonymous with the intelligentsia.
Where were they not found?
 so there was no bourgeoisie "outside the walls of the city" 