 In 1920, Cieszyn Silesia was divided between Poland and Czechoslovakia by the decision of Spa Conference, in which Kiedroń was present as a Polish delegate.Dąbrowa fell to Czechoslovakia and Zofia Kirkor-Kiedroniowa together with her husband left the Zaolzie area, as they were active Polish activists; and stayed in Warsaw, Poland.Since May 1925 she lived in Siemianowice Śląskie.