I suddenly remembered my Charlemagne.

4 seconds sound clip from the Indiana Jones and the Last Crusade movie soundboard.

You can hear this line at 01:20:58 in the Blu-ray version of the movie.

Quote context

[...]

- This is intolerable!

- This could be close.

- Faster, boy! Faster!

- Well, they don't come any closer than that!

- Dad, he's coming back!

- I suddenly remembered my Charlemagne.

- Let my armies be the rocks and the trees and the birds in the sky.

- These pages are taken from Professor Jones' diary, Your Highness, and they include a map that pinpoints the exact location of the Grail.

- As you can see, the Grail is all but in our hands.

- However, Your Highness, we would not think of crossing your soil without your permission, nor of removing the Grail from your borders without suitable compensation.

[...]