Patronymics were legally abolished in 1826 since authorities wanted people to use family surnames instead.

When did Sweden stop using patronymics?

However, Swedes with patronymic names were encouraged to adopt family names after 1901. The use of patronymics wasn't abolished until the 1963 Names Adoption Act.

When did patronymics end?

End of the Patronymic System

As society changed in the mid- to late 19th century with increased industrialization, migration into cities, and emigration, the conventions surrounding Swedish surname usage also changed. Women began using the -son suffix rather than the -dotter suffix.