The dataset contains information about the urban elite in the town of Leiden in the period 1420-1510. It offers lists of magistrates of the City Council, their terms of office, data concerning choice of party and faction, occupation, education, possible entrance in monasteries or convents, ecclesiastical careers, wealth, property, marriage, and family relations in the time period 1420-1510. The files are included in the dissertation by Hanno Brand, 'Over macht en overwicht: Stedelijke elites in Leiden 1420-1510' (Leuven, Apeldoorn 1996). For detailed source information see Brand's dissertation, annotation in appendixes.