- Category : 1876-births
- Type : PE
- Profile : 2/4 - Hermit / Opportunist
- Definition : Split - Small (22,35)
- Incarnation Cross : RAX Eden 1
German art historian who served from 1909 to 1933 as director of the National Gallery at Berlin. He acquired particular importance through the construction of the first museum of contemporary art in the Kronprinzenpalais. He died on 19 October 1957 in Potsdam.