1. In 1077, Henry IV of the Holy Roman Empire "walked" to what Italian castle, which led to Pope Gregory VII reversed his excommunication regarding the investiture controversy?
2. Smaller than Tikal o…
1. In 1077, Henry IV of the Holy Roman Empire "walked" to what Italian castle, which led to Pope Gregory VII reversed his excommunication regarding the investiture controversy?
2. Smaller than Tikal o…