The European Clinical Case Corpus (E3C) is a project aimed at offering a freely available multilingual corpus of semantically annotated clinical narratives. The project will build a 5-language (Italian, English, French, Spanish, and Basque) clinical narrative corpus to allow for the linguistic analysis, benchmarking, and training of information extraction systems. We build upon available resources and collect new data when necessary, with the goal to harmonise current annotations, introduce new annotation layers, and provide baselines for information extraction tasks. We foresee two types of annotations: (i) temporal information and factuality and (ii) clinical entities.