Districts of Cologne within city limits), while 174,87 km² (43.2 percent) lie right of the Rhine. In regard to population, Cologne is the largest city in the state of North Rhine-Westphalia and the fourth largest city in Germany. Since the city's foundation in 38 BC, Cologne grew through numerous extensions and incorporation of surrounding municipalities. Since the construction of the Medieval wall in 1180, the area of the old imperial city of Cologne has not changed for more than 600 years and was only extended over the old city walls in 1794, just short before the arrival of French troops and Cologne's incorporation
Kilian of Cologne use of his monastery and pilgrim monks, several farms, with the fishing of the Rhine attached; three churches, several manses, vineyards, and exemption from some of the taxes in the city and in the empire. He also got charge of the monastery of St. Pantaleon, in the city, as well as of St. Martin's. It is evident there must have been Irish monks in the former as well as in the latter of these monasteries."" He died 19 January 1003, after which date the abbey appears to have declined in its Irish connection. Kilian of Cologne Kilian of Cologne, Irish