Mihail and Ecaterina Kogălniceanu had three sons. The oldest, Constantin, was a historian and diplomat. The youngest was Vasile Kogălniceanu (1863–1942). He was an expert in agronomy, an advocate of agrarian politics, and a proponent of universal suffrage, who was jailed by the authorities as instigator of the 1907 Peasants' Revolt. Elected to Parliament with People's Party support, he played a major part in the adoption of a new and extended land reform law.