Parents
Spouse
Children
1579
| 1579 • The Union of Utrecht unites the northern Netherlands in a confederation called the United Provinces. William I of Orange becomes Stadtholder, and the Duc d'Anjou, younger brother of Henry III of France, is invited to become hereditary sovereign. |
1618
Feb 19
Age: 39y
birth of childGeorgius Klinger Rielingshausen, Wurttemberg, Germany ⇓ 1 Source ⇓ |
| 1618 • Johannes Kepler discovers the third law of planetary motion (he soon rejects the idea after some initial calculations were made but on May 15 confirms the discovery). |