 Louis also tried to weaken Henry by supporting his rebellious sons, and encouraged Plantagenet disunity by making Henry's sons, rather than Henry himself, the feudal overlords of the Angevin territories in France.But the rivalry among Henry's sons and Louis's own indecisiveness broke up the coalition (1173–1174) between them.Finally, in 1177, the pope intervened to bring the two kings to terms at Vitry-le-François.