1  Adelheid Tennulius ( – 1657)   +  Johann Friedrich Gronow (5 Sep 1611 Hamburg, Germany – 28 Dec 1671 Leyden, Holland)      2  Geographer Jacob Gronow (20 Oct 1645 Deventer – 21 Oct 1716 Leyden, Holland)         +  (Name Unknown)            3  MD/Botanist Johann Friedrich Gronow (1690 – 1760)               +  (Name Unknown)                  4  Lorenz Theodor Gronow (1730 – 1777 Leyden, Holland)            3  Abraham Gronow       2  Lawyer Lorenz Theodor Gronow (abt 1645 – )