1766–1789 (Age 23)
Calw, Württemberg, Germany
When Justina Marta Gfroerer was born in 1766, in Calw, Württemberg, Germany, her father, Johann Jakob Gfroerer Sr, was 37 and her mother, Justina Martha Vischer, was 27. She married Philipp Albrecht Hettler on 30 June 1785, in Calw, Württemberg, Germany. They were the parents of at least 2 daughters. She died in 1789, at the age of 23.