Stieg Larsson was born on August 15, 1954, in Skelleftehamn near the northern Swedish city of Skelleftea, where his father, Erland Larsson, and maternal grandfather, Severin Bostrom, worked in the Ronnskarsverken smelting plant. Owing to his suffering from arsenic poisoning, his father had to leave his job. The family subsequently moved to Stockholm, but, because of their cramped living conditions in Stockholm, they chose to let their one-year-old son remain behind with his grandparents. He lived with his grandparents until the age of nine near the village of Bjursele in Norsjö Municipality, Västerbotten County. However, his grandfather died of a heart attack at age 50. His mother Vivianne also died early, in 1991, from complications with breast cancer and an aneurysm.