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He grew up in England and became count palatine of the Rhine through his 1193 marriage to Agnes, heir to the Count of Staufen. When his younger brother Otto became one of two rival kings of the Holy Roman Empire in 1198, Henry at first supported him, but switched sides to Philip of Staufen in 1203.
1173
| 1173 • Algebraic chess notation is first recorded. |
1201
Age: 28y
birth of childAgnes Welf 1 Source ⇓ |
| 1201 • Innocent III supports Otto IV as Holy Roman Emperor, against Philip of Swabia. |
1227
Apr 28
Age: 54y
| 1227 • Pope Gregory IX succeeds Pope Honorius III as the 178th pope. |