According to his hypothesis, Franco claims that the Mochica sociopolitical organization was composed of rulers (kings or Alaec) in each valley of the northern coast. However, he underlines that Cao Viejo (Old Cao) was the most important temple and center of power between Chicama and Moche valleys, current territory of Peru's La Libertad region.
Recognized worldwide for finding Lady of Cao's funeral bundle, the Peruvian researcher refers that —after several years of study— he has important elements to raise this hypothesis, which contravenes that of North American researchers, who used to affirm that the Huacas of the Sun and of the Moon
had served as the capital of Moche society.
The Cusco-born archeologist points out that —after studying the murals— it is evident that the same ceremonial spaces located in the upper part of Huaca of the Moon, the public ceremonial plaza, and the spaces attached to the ceremonial plaza were also witnessed at El Brujo (The Sorcerer) Complex
However, in Cao Viejo, these structures have not withstood time and have unfortunately been destroyed by the sea breeze, the salts, and the trade winds which have been damaging all the architectural remains over time.
"If you compare the scene of the prisoners, the beheading, the officiants holding the hand of Huaca Cao and the analogous representations of Huaca of the Moon, you will notice differences, and you will realize that those of El Brujo
are very well made, that means, they are much finer. When you have the power, you bring the best to build your temple. It was a group of artists, read notably, who shaped the reliefs at El Brujo," he says.
Another element that reinforces the academic's hypothesis is that —during the Wari occupation
period— an apparently-planned destruction of Cao Viejo was carried out. This new culture made a new religious ideology prevail in this valley.