Anna Bosch , who cared for him during his long illness , fell into a severe depression .
In 1888 , her daughter Margarete , and in 1889 her daughter Paula were born , and in 1891 her son Robert , who died in 1921 of multiple sclerosis .
Anna Bosch , who cared for Robert during Robert 's long illness , fell into a severe depression .
In 1888 , her daughter Margarete , and in 1889 her daughter Paula were born , and in 1891 her son Robert , who died in 1921 of multiple sclerosis .