Svantepolk Knudsen Skarsholm ^{373,1504,1505}

  Notater:

Svantepolk Knutsson (died 1310), Lord of Viby in Östergötland, was a Scandinavian magnate.

Svantepolk's father was Canute, Duke of Revalia, a bastard son of king Valdemar II of Denmark with a high-born Swedish lady Helena, daughter of Earl Guttorm. His mother had been a Pomeranian lady whose first name and precise origin is not known to us, but who is indicated to have come from the ducal family of Pomerelia. Svantepolk's brother was Eric, Duke of Halland who died in 1304.

Svantepolk settled in Sweden in the mid-13th century. His wife was Benedikte of Ymseborg, daughter of (Earl) Sune Folkesson, a grandson of earl Birger Brosa. Benedikte's mother was Helena Sverkersdotter, the daughter of king Sverker II of Sweden and his first wife Benedikte Ebbesdatter of the Galen family of Denmark. Benedikte's elder sister Catherine of Ymseborg was wife of king Eric XI of Sweden (1216-50), so Svantepolk was the late king's brother-in-law.

Svantepolk became the justiciar of Östergötland and a wealthy and remarkable feudal lord in Sweden. His son Knut presumably died childless

Svantepolk blev gift med Benedikte Sunesdatter, datter af Sune Folkason Jarl og Helena Sverkersdotter. (Benedikte Sunesdatter blev født ansl 1220 og døde efter 1261.)