Baroness Marjatta Elisabeth Stackelberg Est 1701 - 4 Apr 1773 Sunniemi, Ulvila, Finland (d. 1773) Parents Berndt Otto Stackelberg Sr. Baroness Marjatta Elisabet Maydell Children Berndt Johan Hastfer Siblings Wolter Reinhold von Stackelberg Bernd Otto von Stackelberg Georg Johann von Stackelberg Partners Baron Juhana Hastfer, 1.Baron of Sunniemi