The Frisian Neighbors and Diaspora

In the Netherlands the Frisians weren't the only people to live there, in the central Netherlands the Batavians were the southern neighbors of the Frisians. In the west of the Netherlands the tribe Canninifats became allies with the Frisians as well as the Batavians. The Frisians also had neighboring tribe in the north called Chaukians and they also formed an alliance. The Frisians and the Chaukians formed a new tribal alliance called the Franks, this tribe moved south and formed the Frankish Empire which is currently known as France. All of the Frisians neighbors were in alliance against the Roman Empire but sadly the uprising failed. The smaller groups of the west formed larger tribal groups in 300 A.D and assimilated in the Frisian and Saxon tribe.

Reference: http://www.dedutchman.ca/friesland/