 Later, Gaston declared his third daughter Guillemette the new heir, but when he died in 1290, Roger-Bernard immediately took possession of his counties (May).Roger-Bernard then divided his coat of arms between that of Foix and that of Béarn.In 1293, after three years of peace, Gerard V finally contested the usurpation of Béarn and began a long war with Roger-Bernard over the rights of their wives.