Le Moyne did more than build an imposing house. He had the stones gathered from the lands and used in building houses for his people. The seigneur's mill was one of the best. A fine church raised its cross-crowned spire near by. A brewery, built of stone, was in full operation. The land was fertile and produced abundant harvests. When Catalogne visited Longueuil in 1712 he noted that the habitants were living in comfortable circumstances, by reason of the large expenditures which the seigneur had made to improve the land and the means of communication. Whatever Charles Le Moyne could gather together was not spent in riotous living, as was the case with so many of his contemporaries, but was invested in productive improvements. That is the way in which he became the owner of a model seigneury. A seigneur so progressive and successful could not escape the attention of the king. In 1698 the governor and the intendant joined in bringing Le Moyne's services to the favourable notice of the minister, with the suggestion that it should receive suitable acknowledgment. Two years later this recognition came in the form of a royal decree which elevated the seigneury of Longueuil to the dignity of a barony, and made its owner the Baron de Longueuil. In recounting the services rendered to the colony by the new baron the patent mentioned that 'he has already erected at his own cost a fort supported by four strong towers of stone and masonry, with a guard-house, several large dwellings, a fine church bearing all the insignia of nobility, a spacious farmyard in which there is a barn, a stable, a sheep-pen, a dovecote, and other buildings, all of which are within the area of the said fort; next to which stands a banal mill, a fine brewery of masonry, together with a large retinue of servants, horses, and equipages, the cost of which buildings amount to sixty thousand livres; so much so that this seigneury is one of the most valuable in the whole country.' The population of Longueuil, in the census returns of 1698, is placed at two hundred and twenty-three. The new honour spurred its recipient to even greater efforts; he became one of the first gentlemen of the colony, served a term as lieutenant-governor at Montreal, and, going into battle once more, was killed in action near Saratoga in the expedition of 1729. The barony thereupon passed to his son, the third Charles Le Moyne, born in 1687, who lived until 1755, and was for a time administrator of the colony. His son, the third baron, was killed during the Seven Years' War in the operations round Lake George, and the title passed, in the absence of direct male heirs, to his only daughter, Marie Le Moyne de Longueuil who, in 1781, married Captain David Alexander Grant of the 94th British regiment. Thus the old dispensation linked itself with the new. The eldest son of this marriage became fifth Baron de Longueuil in 1841. Since that date the title has been borne by successive generations in the same family.