Antoni Henryk Radziwill
Antoni Henryk was born in 1775.  He died at the age of 58 in 1833.

 Louise Von Hohenzollern
Louise Von was born in 1770.  She died at the age of 66 in 1836.

 Wilhelm Radziwill
Wilhelm was born on March 19th, 1797 in Berlin, Germany.  He died at the age of 73 on August 8th, 1870 in Berlin, Germany.

 Boguslaw Fryderyk Radziwill
Boguslaw Fryderyk was born in 1809.  He died at the age of 64 in 1873.