Jon Smør

Jon Ragnvaldson Smør (c. 1240 – bef. 1328) was a Norwegian knight and riksråd (cabinet minister). He was also the gjaldker (city recorder) of Bergen.
In 1295 he was present at Hindsgavl castle where he cosigned a truce between Norway and Denmark. The year later he confirmed, together with king Eric II of Norway, a settlement between the archbishop of Nidaros and his Chapter. In 1297 he was present at multiple major cases in Trøndelag, and in 1305 he witnessed about the dowry of princess Euphemia of Rügen. Jon owned land among other places in outer Sunnfjord. He is regarded to likely have had three known sons, Ragnvald, Hallvard and Torgaut.
Jon's ancestry is not known, and he is therefore considered to be the first known member of the Smør family. Historian P. A. Munch did however claim that Jon's father could have been Ragnvald Urka who joined king Haakon IV of Norway on his trip to Scotland in 1263, but no real evidence is known to support this theory.