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10 Dec 1814 death of Knud Sveinungsen
Brunkeberg i Kviteseid Kirkebøk 1815-1836 p.97

The second date, 12 Mar 1815, would probably not be the actual burial date, but rather the date when the priest sanctified the grave.

Source information: Telemark county, Brunkeberg in Kviteseid, Parish register (official) nr. II 1 (1815-1836), Death and burial records 1815-1816, page 97 left #1. Permanent online pagelink, Permanent online imagelink