The 1970s were also a time of emotional stress for Freud as she endured a number of bereavements involving family members and close colleagues. Her favourite brother, Ernst, died in April 1970 while she was in America. In the following months she lost two of her American cousins, Henry Freud and Rosie Waldinger, and colleagues Heinz Hartmann and Max Schur. She suffered further distress following the death of her partner Dorothy Burlingham's eldest son and daughter, both of whom had had extensive period of analysis with her as children in Vienna and as adults in London. Robert Burlingham died in February 1970 of heart disease after a long period of depression. In 1974 Burlingham's daughter Mabbie arrived in London from her New York home seeking further analysis with Anna, notwithstanding the latter's advice to continue in analysis with her New York analyst. Whilst at the family home in Hampstead she took an overdose of sleeping pills and died in hospital three days later.