We have blocked rooms for conference participants in the university guest houses and two local hotels. All are within easy walking distance (5 minutes) of the conference venue. See this map for details. The conference rate for the guesthouse/hotels is around EUR 40-45/night for a single. Please let us know - by the end of January - which nights you will be staying in Marburg.
In case you wish to make your own arrangements, more information about hotels in Marburg can be found on the city's accomodation pages: www.marburg.de (Accommodation section)