[1][2][3][4][5] From the Icelandic Sagas, there are indications to suggest that the Vikings had acquired large cattle/guard/war dogs from their invasion of Britain.

[citation needed] In Njals Saga, the Viking "Gunnar from Hlidarende" is given a large Irish Wolfhound as a gift.

There is a preserved large brown skin of a Dalbo dog in Hindås, Sweden.

[citation needed] The first time the breed is mentioned is in Gunno Brynolphi Blutherus' (*1609-+1657) book Dalia printed in 1632 AD.

The stories that remain tell of a legendary giant dog who killed wolves, took on marauding brown bears, and defended small children who had got lost in the deep Swedish forests.

The extinction of the Dalbo dog is linked to the nearby wipeout of wolves and bears in Scandinavia in around 1890.