Siwardus was a Bishop of Uppsala in the 1140s. He was probably the same person as the Sverinius who is mentioned as the first Bishop of Uppsala in an early 15th-century ''Incerti scriptorts Sueci chronicon primorumin ecclesia Upsalensi archiepiscoporum'', chronicle of Uppsala archbishops. Historical sources mention Siwardus in 1142 and 1143. Siwardus apparently died in a monastery in

Oldenburg Oldenburg may also refer to: Places * Mount Oldenburg, Ellsworth Land, Antarctica *Oldenburg (city), an independent city in Lower Saxony, Germany **Oldenburg (district), a district historically in Oldenburg Free State and now in Lower Saxony * Ol ...

in 1159 after being exiled from Uppsala by local heathens sometime earlier. There were plans to have him canonized as a saint, which never took place.

References

Roman Catholic archbishops of Uppsala 12th-century Roman Catholic bishops in Sweden Year of birth unknown Year of death unknown {{Sweden-RC-archbishop-stub