1801 traditionally marks the end of the Walloon troops in Austrian service. Signed in February that year, the Peace of Luneville forced the Habsburg Monarchy to finally accept the loss of the southern Netherlands to France. Within a few months the bulk of the former military establishment of the now lost provinces was moved to Galicia where they were allocated with new permanent conscription districts. Netherlandish officers continued to serve in the Habsburg army in disproportionately large numbers until the end of the Napoleonic Wars. However, we are told that the regiments themselves lost their connection to their homeland, and that while the Walloon designation was formally retained as late as 1816, the former Netherlandish régiments nationaux were no longer seen as such. Indeed, extant published histories of the Walloon units cut off in 1801. The current dataset shows that the collective presence of Walloons in the Austrian Army was, in fact, far from over. Drawing on the entire papers of the annual ... : This dataset was created to accompany my article ‘The 30th Walloon Line Infantry Regiment ‘De Ligne’ and its Galician Peacetime Muster of 12 August 1803’ in the inaugural issue of the Belgian Journal of Military History 1 (2024), pp. 75-102. This article contains explanation on how the dataset was collated, on its colour code, and on the different categories used. A direct link to the article will be provided here as soon as an online version becomes available. ...