Johann Leonhard Heydecker
Johann Leonhard was born on June 13th, 1718 in
Kempten. Johann Leonhard's father was
Joachim Heydecker and his mother was
Dorothea Wenglin. His paternal grandparents were
Joachim Heydecker and
Ursula Kiesel. He had a brother and two sisters, named
Georg,
Maria Catherina and
Anna Barbara. He was the youngest of the four children. He had three half-brothers and six half-sisters, named
Markus,
Joachim,
Marcus,
Ursula,
Magdalena,
Veronika,
Susanne,
Anna Maria and
Euphrosina. He died at the age of 70 on November 20th, 1788.