Fourth Sapa Inca; son of Lloque Yupanqui. Scion-class (registry math: quartigod + mortal mother → f=0.125 = scion-band). The Sarmiento-recorded precocious-warrior tradition (walked at three months, spoke at one year, full-strength at age two) is a recurring Andean dynastic-legitimization mythologem and parallels similar narratives for later Sapa Incas. His war against the Alcabicas marks the first significant offensive Inca expansion beyond the founder-generation Cuzco-basin consolidation. Conventional dating c. 1290 CE.