The Tugendhats had Ernst their first son on 8th of March 1930 in Brno. The governess Hedvika Jurečková (Hedwig Juretschka, born in 1897) worked for the Tugendhats from 4th of February 1930, beginning shortly after the birth of Ernst. She was registered at the address Černopolní street 45, that is Villa Tugendhat, as of 9th of December.