Petlacalco is Barlow's Province 38. The Matrícula page on which it is located was one of the two taken by Poinsett. Petlacalco is found in the Codex Mendoza on folio 20 (recto) and 20 (verso). It represents the southern part of the "heart of the Empire."The following maps and table are all from Barlow (1949).

Location Map. Petlacalco is shown in green.

Barlow's map of the province. Petlacalco straddles the Distrito Federal.

 

Tributary Pueblos

7. Tecoloapan
8. Petlacalcatl
9. Huiçilopochco
10. Tzapotitlan
11. Cuitlahuac
12. Olac
13. Xico
14. Mizquic
15. Cocotlan
16. Tepopulan
... Acapan (not located)
... Auchpanco (not located)
... Colhuacacinco (not located)
... Nextitlan (not located)
... Tecalco (not located )
... Tepechpan (not located)
... Tequemecan (not located)
... Tezcacoac (not located)
... Tlazoxiuhco (not located)
... Toyac (not located)
... Xaxalpan (not located)
... Yopico (not located)

 

Modern Locations

7. San Mateo Tecoloapan, Méx.
8. San Jeronimo Petlacalco, Méx. *
9. San Diego Churubusco, D.F.
10. Santiago Zapotitlán, D.F.
11. San Pedro Tláhuac, D.F.
12. Xochimilco - Olac, D.F.
13. Xico, Méx.
14. San Andrés Mizquic, D.F.
15. Cocotlan, D.F. ?
16. Tenango de Tepopula, Méx.
... ?
... Aypango de Ramós Millán, Méx. *
... San Cristobal, Mex
... ?
... Tecalco San Mateo Tecalco, Méx.
... Santa Cruz Tepexpan, Méx. *
... ?
... San Andreas Tezcacoac, Méx. *
... Just north of Tecoloapan
... Atoyac, Méx. *
... Jalapa, Méx. *
,,, ?

Key

# Town indicated as a tributary in a source other than the Codex Mendoza.

* Modern location from Castillo Farreras (1997). The appelidos of the modern place names are also from Castillo Farreras (1997).

? Location uncertain