(apr 1, 1528 – jun 30, 1528)
Wayna had only been able to move a little south before Smallpox swept through his army, eventually reaching him. As his health got worse, he was asked to name a successor. While some say he named his older son, some say he named his younger son. This began a Civil War.
Added to timeline:
Inca Colonization by Francisco Pizarro