Zygocolax pimpata' radiance' the tag says.
 

This is what the tag says but looks like its all a zygopetalum, looks like freestyle princess to me with a different shade of purple lip, a cross.

Well Zygocolax is an intergeneric hybrid of Zygopetalum & Pabstia so it could have a lot of the same parantage as Freestyle Princess with just something else in there from the Pabstia genus in the mix.

(Just a note Zygocolax Pimpata should have a capital P as a hybrid, as should Freestyle Princess be capitalised, there are a lot of other conventions on names, but that is one of the most important to help people know if you are talking about a hybrid or a species).

Anyway, it's really pretty whatever the parentage, I'm afraid I can't find the name registered on the RHS though to find out exactly what it is.

Your Zygocolax is now considered a Zygopabstia, and appears to be Zygopabstia Pimpala 'Radiance', a selected clone of (Zygopetalum mackayi x Zygopabstia Elfin Jade). It is 25% Pabstia jugosa and 75% a mix of 4 Zygopetalum species.

A well found PaphMadMan, I had tried to find the parents but had not realised the spelling mistake in Pimpala.

Zygo traits tend to be very dominant in their hybrids; they'll wipe out the flower shape of the other plant they're mated with. That said, they come in many colors, but essentially the same shape.

Nice plant, by the way. I love the dark coloring. :)

Gorgeous flowers!