Who paid for the construction of the Battle Coliseum?

Answer 1

It was started and finished by a number of Flavian Emperors. The Amphitheatrum Flavium, a.k.a. Colosseum or Coliseum (though in the antiquity Romans referred to it as to Amphitheatrum Caesareum or hunting theater), was built by the Flavian emperors in the first century AD as a gift to the Roman citizens.

The emperor Vespasian was acknowledged as emperor by the Senate in 69, and wanted to make a political gesture to reconcile the Roman citizens with the new masters. So he gave back to the Romans most of the land that Nero had occupied in the centre of the city, and the Colosseum was built in the place where before was an artificial lake, in the park of Nero's residence.

It took about ten years to build the amphitheatre. Vespasian started the works in 72 AD and his son Titus dedicated it in the year 80 with magnificent games that lasted one hundred days. It is generally accepted that the building was completed by the following emperor, Domitian, Titus' brother.

I would therefore imagine that it was paid for by these three :)