The Mohawk suffered a severe smallpox epidemic from 1661 to 1663, causing high fatalities. When Tekakwitha was around four years old, her baby brother and both her parents died of smallpox. She survived but was left with facial scars and impaired eyesight. She was adopted by her father's sister and her husband, a chief of the Turtle Clan. Before the epidemic, in 1659, some Mohawk had founded a new village on the north side of the river, which they called Caughnawaga ("at the wild water" in the Mohawk language). Survivors of Ossernenon moved to that village.