Ditha Moser, born on April 12, 1883 in Vienna as Editha Mautner Markhof, was one of five daughters of the industrialist Karl Ferdinand Mautner Markhof from his second marriage to Editha, née Sunstenau von Schützenthal.
From 1902 to 1905, she studied architecture in the class of Josef Hoffmann at the Vienna School of Applied Arts and in the drawing class of Carl Otto Czeschka, as well as writing and heraldry with Rudolf von Larisch. She married Koloman Moser on July 1, 1905, whom she had known since 1903. In order to avoid the constant confusion between the two Editha Mautner Markhof, mother and daughter, Editha Moser shortened her first name from Editha to Ditha while already being Koloman Moser's fiancée. Her family and friends considerably supported her. Their marriage, which lasted until 1918, produced two sons: Karl (Carl) and Dietrich Moser.
On February 23, 1919, Ditha Moser married the coffee house owner Adolf Hauska, with whom she had three children: Editha, Theodor and Adolf. However, the first two died already in infancy, a few years later their father, Adolf Hauska, followed them. Her sons Dietrich and Adolf also died at a young age. Ditha Moser herself found her last resting peace in Koloman Moser's grave after she died on November 3, 1969 in Mödling. The sons Dietrich and Karl, as well as Maria Johanna and Wolfgang Julius Koloman Moser, were also buried there.
Ditha Moser worked as a representative of Art Nouveau mainly for the Wiener Werkstätte, where she primarily worked as a graphic artist and ceramist. She became known for the design of calendars and playing cards, especially for her tarot and whist deck. After the death of her first husband Koloman Moser on October 18, 1918, she was no longer artistically active.
