Mental illness was prevalent in the Warburg family. Paul’s daughter, Bettina, influenced by the struggles of her uncles Aby Warburg and James Loeb, would grow up to become an accomplished psychiatrist; she annotated a Warburg family tree with the afflictions of its members—manic depression, epilepsy, mania, schizophrenia. “Idiot,” she scrawled next to the name of one relative.[18]
