She died after giving birth to her daughter, where she contracted puerperal fever

Ad Olivier has written:

'A case of grave puerperal fever' -- subject(s): Treatment, Puerperal disorders

Philip Pitt Walsh has written:

'Practical observations on the puerperal fever' -- subject(s): Puerperal septicemia

Puerperal fever (from the Latin puer, child), also called childbed fever, can develop into puerperal sepsis, which is a serious form of septicaemia contracted by a woman during or shortly after childbirth, miscarriage or abortion. If untreated, it is life-threatening. The most common infection causing puerperal fever is genital tract sepsis. Other types of infection that can lead to sepsis after childbirth include urinary tract infection, breast infection (mastitis) and respiratory tract infection (more common after anaesthesia due to lesions in the windpipe). Puerperal fever is now rare in the West due to improved hygiene during delivery, and deaths have been reduced by antibiotics.

a Hungarian physician who found out washing hands prevents puerperal fever