 Little is known of the reign of Ivar II; Kildare was plundered again by "the heathens" in 900, which may have been his doing.The final blow fell in 902, when Cerball mac Muirecáin King of Leinster and Máel Findia mac Flannacáin King of Brega launched a two-pronged attack on Dublin from the north and the south, and drove Ivar II out of the city.The Norsemen's defeat was comprehensive.