Unterdöbling was an independent municipality until 1892 and is today a part of Döbling, the 19th district of Vienna. It is also one of the 89 Katastralgemeinden.
Karl Mayreder was born the son of hotelier Leopold Mayreder and his wife Henriette Mayreder. Leopold Mayreder had taken over the famous hotel “Matschakerhof” at number 5 in the Spiegelgasse/number 7 i