Sediments from Lake Lubińskie, western Poland, were investigated to determine the limnological responses to environmental changes and to identify the mechanisms driving eutrophication over the last 3,000 years. The chronology was obtained through three independent varve counting, radiometric measurements (Cs-137 and Pb-210), and radiocarbon dating. Due to slumps in the sediment record, a Bayesian modelling approach was applied to develop the final chronology. Pollen analysis was performed on 48 samples from the Lake Lubińskie record to present a general overview of the vegetation changes through time and the agricultural performance in the catchment. Diatom analysis was performed on 61 samples to present the most abundant taxa, ecological groups, and local assemblage zones and to estimate the lake level fluctuations. CNS measurements (TIC, TOC, TC, TN, TS) were performed to capture the geochemical fluctuations throughout the profile.