Mari was born in 1748. Mari's father was Jüri and her mother was Madli. Her paternal grandparents were Peeter and Eva; her maternal grandparents were Toomas and Madli. She had three brothers and a sister, named Hans, Märt, Jaak and Ann. She had two half-brothers and three half-sisters, named Ado, Jüri, Pabbo, Anu and Els. She died at the age of 56 in 1804.