Halfdan "the Mild" Eysteinsson King of Vestfold and Romerike [Semi-legendary] ^{1 2}

   Other names for Halfdan were Halfdan Eysteinsson and Halfdan "the Meek" Eysteinsson King in Vestfold.

  Research Notes:

From Wikipedia - Halfdan the Mild :

Halfdan the Mild (Old Norse : Hálfdan hinn mildi) was the son of king Eystein Halfdansson , of the House of Yngling and he succeeded his father as king, according to Heimskringla . He was king of Romerike and Vestfold .

He was said to be generous in gold but to starve his men with food. He was a great warrior who often pillaged and gathered great booty.

His wife was Liv, the daughter of king Dag of Vestmar . Halfdan the Mild died of illness in his bed.

He was succeeded by his son, Gudrød the Hunter .

Halfdan married Liv Dagsdotter of Vestmar, daughter of Dag King of Vestmar and Unknown. (Liv Dagsdotter of Vestmar was born in <Holtum, Vestfold, (Norway)>.)