Five sediment cores were collected from Lake Krzywce Wielkie (‘Bory Tucholskie’ National Park) to reconstruct macrophytes succession: four from the littoral zone (35 cm) and one from deep water. Chronology originally published by Milecka and co-authors was established using radiocarbon dating for the deep-water core and short-lived isotopes for the littoral cores. Initial estimates suggested that the upper 13–20 cm of littoral sediments represented the last century; however, inconsistencies in ²¹⁰Pb and ¹³⁷Cs dating, combined with pollen evidence of sedimentary gaps, necessitated a revision of this timespan. Principal Coordinates Analysis was applied to align pollen sequences from littoral cores with those from the deep-water core, which has a wellestablished 14C-based chronology. Twenty-five biplots representing three datasets (ALL set – all terrestrial taxa; PB set – terrestrial excluding Pinus and Betula; NAP set – herb taxa) and various core combinations facilitated the development of a revised chronology. Palynostratigraphic correlation provided tentative yet robust age estimates and revealed substantial sedimentary gaps – exceeding one millennium in one core and approximately two centuries in others. Three cores exhibited similar sedimentation patterns, distinct from the fourth. Overall, the chronological addendum presented by Milecka and co-authors demonstrated that littoral sediments are considerably older than indicated by isotope dating.