Ralph

The word "triumph" derives from the Latin word triumpus which, 2000 years ago, was the highest award the Roman Empire could bestow on one of its citizens.

Athena

A triumph was only awarded to generals who had won a great military victory, and the highlight of the award ceremony consisted of the victorious army marching into Rome followed by a column of captured prisoners in chains.

Ralph

By Shakespeare's time, the word "triumph" was used in a more general sense to refer to any public ceremony, and that's how Theseus is using it here when he refers to his upcoming royal wedding as a “triumph”.

Athena

Theseus has recently defeated a tribe of female Amazon warriors, the leader of whom is now his soon to be bride, so his use of the word “triumph” would have suggested to Shakespeare’s audience the image of Theseus’ victorious army parading through Athens with Hippolyta's captive fellow warriors in chains – a choice of words not likely to get his marriage off to a great start.