- Year 1907. 15-01-1907 Letter to Alma Mahler (1879-1964).
- Year 1907. 16-01-1907 Letter to Alma Mahler (1879-1964).
More on Hotel Imperial in 1903 Hotel Imperial.
- Year 1907.
- Period: 05-05-1907 until 04-06-1907.
- Address: Kartner Ring No. 16.
- District number: I.
- District name: Innere Stadt.
- Districts of Vienna.
Mahler visited the Café and Restaurant very often. It started when he was a student. Also with Arnold Josef Rose (1863-1946), Emil Freund (1858-1928) and Ludwig Boer (1862-1942). Ludwig Karpath (1866-1936), Max Graf (1873-1958).
- Fall 1879 letter to Anton Krisper (1858-1914).
- 27-08-1901 letter to Justine (Ernestine) Rose-Mahler (1868-1938).
- 18-07-1907 letter to Alma Mahler (1879-1964) when Mahler stayed in the Hotel.
