tlatzontequiliz icpalli.

Headword: 
tlatzontequiliz icpalli.
Principal English Translation: 

the tribunal, seat, or platform where judging and sentencing took place (see Molina)

Alonso de Molina: 

tlatzontequiliz icpalli. tribunal, silla o estrados, donde juzgan y dan sentencia los juezes.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 143v. col. 1. Thanks to Joe Campbell for providing the transcription.