By the gods, she's the daughter of a king.

3 seconds sound clip from the Duel of the Titans (Romulus and Remus) movie soundboard.

You can hear this line at 00:14:28.760 in the Blu-ray version of the movie.

Quote context

[...]

- You heard her. Do as your mistress says.

- You pig, how dare you speak that way to me?

- Stop it, Curtius!

- As you wish.

- If you were even half as courageous as you are insolent, why don't you take part in the race of the Burning Hurdles?

- I'll be there.

- What's the name of your mistress?

- Julia, the daughter of Tatius, king of the Sabines.

- By the gods, she's the daughter of a king.

- You could have spoiled our whole plan.

- Yes, I know. But it's all for the best.

- While I'm racing tonight, the guards will be distracted. It'll be easier for you.

- I agree, but we have no time to waste if we expect our plan to succeed.

- All right, come on.

- Why are you here, Tarpeia?

- Why should I wait for you in camp? I can be more useful to you here.

[...]