 He died in Paris on 21 December 1929.Informed by Durkheimian sociology, he was a theorist of collectively-held 'lay morality', which was rational and based upon general interest.Gustave Belot is the brother of Émile Belot (1857-1944), engineer, inventor and astronomer, and the great great uncle of Pierre Pincemaille (1956-2018), musician and organist.