This book constitutes refereed proceedings of the Third International Workshop on Research and Education in Urban History in the Age of Digital Libraries, UHDL 2023, held in Munich, Germany, during March 27-28, 2023.
The 15 full papers presented were carefully reviewed and selected from 32 submissions. The papers are organized in the following topical sections: theory, methods, and systematization; data handling and data schemes; machine Learning and artificial Intelligence; visualization and presentation and education.

Inhalt
Theory, Methods, and Systematization: An Experimental Methodology for the 3D Virtual Reconstruction of Never Built or Lost Architecture.- Historical Construction Research based upon 3D digital documentation of the Ba-roque Palais im Grossen Garten in Dresden.- Potentials for Research in Urban History Online Research Tool 4D Community Browser.- Data handling and data schemes: Metadata for 3D digital heritage models. In the search of a common ground.- Towards Querying Multimodal Annotations using Graphs.- The Accademia de lo Studio de l'Architettura a Database project.- Machine Learning and Artificial Intelligence: Semi-automatic generation of historical urban 3D models at a larger scale using Structure-from-Motion, Neural Rendering and historical maps.- Visualization and Presentation: Digital Urban History Lab Serious 3D in research, education and popularization of cultural heritage.- Colouring Cities: A Citizen Science Platform for Knowledge Production on the Building Stock - Potentials for Urban and Architectural History.- Reviving the Sounds of Sacral Environments: Personalized Real-Time Auralization and Visualization of Location-Based Virtual Acoustic Objects on Mobile Devices.- From archival sources to a 3D-visualization of baroque urban topography: Vienna, Neuer Markt, c. 1760.- Education: The Nuremberg Stations of the Cross. Enriching on-site experiences of a historical pathway by the FAU GeoExplorer App.- Designing Learning Tasks and Scenarios on Digital History for a Research Lab for Pupils. Trends, first implications and perspectives.- Virtual experiences using digital technologies for South Tyrol heritage education.- Public health, artisanal activities, daily life in medieval Bologna: digital projects as teaching tools for urban history.