+--Thomas GRZIMEK  (ABT  1670-)
+--Michael GRZIMEK  (25 SEP 1704-10 NOV 1777)
|  +--Eva Ulla GWYHS  (ABT  1675-)
Joseph GRZIMEK  (14 MAR 1741-18 JUN 1791)
|  +--Johann KOY  ( 1680-)
+--Marianne KOY  (07 JAN 1710-27 AUG 1777)
   +--Hedwig N.N.  ( 1685-)