In 1901, Konstantin Päts married Wilhelma ("Helma") Ida Emilie Peedi (b. 1878), whom he had met in Pärnu High School. They had two sons, Leo and Viktor. Konstantin left his family for exile in 1905 and his second son was born while he still resided in Switzerland. They were united when Konstantin moved to Ollila, Finland. His wife died of lung disease in 1910 while he was imprisoned in Saint Petersburg, and Päts never remarried. His children were raised by his wife's unmarried sister Johana (Johanna) Wilhelmine Alexsandra Peedi. Konstantin Päts also had at least one godson.