Linked from
The 10 pages that link to Frederick William IV, each with the reason it gives.
Bettina von ArnimRelated: She addressed him in print, seeking reform while challenging royal policy.
Baden RevolutionRelated: Prussian intervention under his rule crushed the revolutionary government.
Berlin ZooRelated: His royal support helped make the zoo’s founding possible.
William IRelated: His incapacity led William to serve as regent before inheriting the crown.