Piece of Music from "To Play the King"

[T]

Does anybody happen to know what piece of music is playing during the King's television special included in the second part of the House of Cards trilogy (starring Ian Richardson as Francis Urquhart)?  It is very recognizable, and I feel as though I should be ashamed for not knowing it right off, but I just can't place the name.

Thanks...

[Wilhelm Richard]

Jupiter from Holst's Planets.