Read this article and answer this question Francois Jarret, of Saint-Chef in the department of Isere in France, joined the company of his uncle Antoine Pecaudy de Contrecur to battle the Iroquois in New France . They arrived there in August 1665, and on 17 September 1669 Jarret married the twelve-year-old Marie Perrot in Ile d'Orleans. He was awarded a land grant on the south shore of the Saint Lawrence River on 29 October 1672 in a seigneury called Vercheres, and thereafter continued to increase his land holdings. The couple was to have twelve children, the fourth of whom was Marie-Madeleine, born in Vercheres on 3 March 1678 and baptised that 17 April. The seigneury underwent periodic Iroquois raids. In 1690 the matron of Vercheres took command of a successful defense against an Iroquois assault on the stockade there. By 1692 the Iroquois had killed the Jarrets' son Francois-Michel and two successive husbands of their daughter Marie-Jeanne. Before she performed this courageous act, she usually worked in the family field during her spare time.
How many people close to the Jarrets were killed?
3