Rise of Tupac Inca Yupanqui in the 1460s

Timeline

1. 1461–1464Cusco royal palace · CuscoIn the early 1460s Pachacuti designated Tupac Inca Yupanqui as heir to the throne. In Cusco he received training in military, religious, and administrative affairs, and began participating in imperial governance under his father's supervision, gradually moving beyond a purely ceremonial role as crown prince.
2. 1464–1467Ecuadorian highlands · Quito SuyuIn the mid-1460s Tupac first independently commanded a large-scale northern expedition, fighting Cañari and other forces on the Ecuadorian highlands. His display of military ability won the loyalty of generals and subject peoples, and his achievements further secured his position in the imperial line of succession.
3. 1467–1470Northern coast of Peru (Chimor theater) · Northern CoastIn the late 1460s Tupac was appointed supreme commander of the Chimor expedition, leading a large army to besiege Chan Chan and completing the conquest around 1470. This campaign made him the empire's de facto second-in-command, paving the way for a smooth succession after Pachacuti's death.