In Europe, the legitimacy of a monarch's rule was founded on the concept of divine right. By observing the reaction to the execution of Charles I of England and Louis XVI of France, we can see that their divine right was treated very seriously by pretty much everyone. Did this concept apply to a heathen ruler such as Atahualpa? Was there any condemnation from Europe coming Pizarro's way?
Emperor Charles V sent a letter to Pizarro:
We have been displeased by the death of Atahualpa since he was a monarch and particularly as it was done in the name of justice.
Pizarro took one of Atahualpa's wives, Cuxirimay Ocllo (later baptized as Angelina Yupanqui), as his concubine and had 2 children: Juan Francisco and Francisco. Pizarro also took Ines Yupanqui, Huayna Capac's daughter, as mistress and had a daughter: Francisca Pizarro Yupanqui.
Emperor Charles V recognized Francisca Pizarro Yupanqui as a legitimate heir of Francisco Pizarro by a royal decree in 1537.
Among Incas or in Europe?