William I, King of Prussia

King Frederick William IV of Prussia had a stroke which incapacitated him; his brother William became Regent.

William I became King of Prussia when Frederick William IV died.

The new German Empire was declared in the Hall of Mirrors at Versailles; William I of Prussia became Emperor William I of Germany .

Two attempts to assassinate Emperor William I of Germany failed.

Emperor William I of Germany died; his son William Frederick succeeded him. William Frederick died only three months later, on 15 June, and was in turn succeeded by his son, William II .