花粉分析
Pollen analysis has shown that the modern-day municipality of Lappeenranta has been continuously inhabited for at least 2,000 years. Lappeenranta's original core settlement, Lapvesi, later Lappee, was originally formed around a headland jutting into Lake Saimaa, the site of the present fortress. The public market was established here, which became so important as a trading place that general Governor Count Per Brahe the Younger proposed that the Swedish government should grant town privileges to Lapvesi. The town was chartered in 1649 by Queen Christina of Sweden. At the time, Lapvesi was an important port for tar.