Kammala wannan jumla: Johan van Galen an haife shi ne a Essen. Ya yi yaƙi a cikin Yakin Shekaru Takwas da Spain, ya zama kyaftin a 1630 kuma kyaftin din yau da kullun a 1635, galibi yana yaƙi da Dunkirkers. A shekara ta 1639, ya yi yaƙi a
Yaƙin Downs a ƙarƙashin jagorancin Joris van Cats.