What does Emiliano mean?
The Spanish form of the Latin Aemilianus, derived from the Roman family name Aemilius, which is generally linked to the Latin aemulus 'rival, emulating, striving'. Spread in the Hispanic world partly through the Mexican revolutionary Emiliano Zapata.
What does Thiago mean?
A form of Tiago, drawn from Santiago ('Sant Iago', Saint James) by resegmenting San-Tiago. The 'Th' spelling is Portuguese-influenced and hugely popular across Latin America. Ultimately traces to the Hebrew Ya'aqov (Jacob), via James.