Editing Duisburg (section)

=== Middle Ages ===
Due to the town's favorable geographic position a [[Count palatine|palatinate]] was built and the town was soon granted the [[Royal Charter|royal charter]] of a [[Free imperial city|free city]]. Duisburg became a member of the [[Hanseatic League]]. Around 1000 the river Rhine moved westward from the city. This put an end to the city's development as a trading town and it soon grew into a quiet rural city.
[[File:Duisburg Mercatorbrunnen 1.jpg|thumb|Mercatorbrunnen (''"Mercator fountain"'') in front of the town hall]]
The productions of cartographer [[Gerardus Mercator]] and the foundation of a university in 1655 established the city's renown as "Educated Duisburg" ("Duisburgum Doctum").
*[[File:Stadtmauer Duisburg Außenseite 3.JPG|thumb|Remains of the city wall]]1120: construction of the [[Defensive wall|city wall]]
* 1279: "city charter" granted by King [[Lothair III, Holy Roman Emperor|Lothar III]]
* 1290 Duisburg becomes part of the County (after 1417 Duchy) of [[Duchy of Cleves|Cleves]]
* 1445 attack by Archbishop-Elector [[Dietrich II von Moers]] ([[:de:Dietrich II. von Moers|de]]) of [[Archbishop-Electorate of Cologne|Cologne]] was thwarted[[File:DuisburgVogelschauplan1566.jpg|thumb|Duisburg Corputius plan 1566]]
* 1566 [[Johannes Corputius]] completes his [[city map]] of Duisburg.
* 1666 Duisburg within the Duchy of Cleves becomes a part of [[Brandenburg-Prussia]]