This is the templates for research data management plans of research at the Max Planck Institute for Legal History and Legal Theory (mpilhlt). The plans consist of one or two parts, a mandatory questionnaire and, if applicable, a free-form data manual (containing more detailed technical bits of information). For the former, this dataset contains files for implementing the questionnaire as an RDMO catalog. For the latter it contains an office text document as a template with topics suggested for inclusion in the data manual. The RDMO catalog is deployed at https://rdmo.mpdl.mpg.de/