During the next twenty-four years Champlain passed some months in France at different times, according to the exigencies of the colony. One of the most important changes he brought about was the formation of a new commercial association, for the purpose of reconciling rival mercantile interests. To give strength and dignity to the enterprise, the Count de Soissons, Charles of Bourbon, one of the royal sons of France, was placed at the head, but he died suddenly, and was replaced by Prince de Conde, Henry of Bourbon, also a royal prince, best known as the father of the victor of Rocroy, and the opponent of Marie de' Medici during her intrigues with Spain. It was in this same year that he entered into an engagement with a rich Calvinist, Nicholas Boulle, to marry his daughter Helen, then a child, {77} when she had arrived at a suitable age, on the condition that the father would supply funds to help the French in their Canadian experiment. The marriage was not consummated until ten years later, and Champlain's wife, whose Christian name he gave to the pretty islet opposite Montreal harbour, spent four years in the settlement. The happiness of a domestic life was not possible in those early Canadian days, and a gentle French girl probably soon found herself a mere luxury amid the savagery of her surroundings. Helen Champlain has no place in this narrative, and we leave her with the remark that she was converted by her husband, and on his death retired to the seclusion of an Ursuline convent in France. No child was born to bear the name and possibly increase the fame of Champlain. On his return to Canada, in the spring of 1613, Champlain decided to explore the western waters of Canada. L'Escarbot, who published his "New France," soon after his return from Acadia, tells us that "Champlain promised never to cease his efforts until he has found there [in Canada] a western or northern sea opening up the route to China which so many have so far sought in vain." While at Paris, during the winter of 1612, Champlain saw a map which gave him some idea of the great sea which Hudson had discovered. At the same time he heard from a Frenchman, Nicholas de Vignau, who had come to Paris direct from the Ottawa valley, that while among the Algonquin Indians he had gone with a party to the north where they had found a salt water sea, on whose shores were the remains {78} of an English ship. The Indians had also, according to Vignau, brought back an English lad, whom they intended to present to Champlain when he made his promised visit to the Upper Ottawa.