Many Irish families intermarried with the Scandinavians, but it was a question of degree. In their case the O'Donovans simply took a particularly large dose. Nearly all of the long history of the Danes in Munster has been lost, although those living in Uí Chairpre are not known to have left, being last noted in Donnubán's company in 978. The later advent of the Norman invasion of Ireland ruined them as a political class. For the fate of the Limerick Norse see History of Limerick. Only the Cotter family of East Cork continue to prosper today in Ireland, but they are not of Limerick provenance.