AES - Understanding the passport

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I'm not really that up on breeding - to me I just look at the horse and if it's good enough, the parents don't matter! However, having just bought a horse on this principle, I want to understand his passport more!!
His passport is AES but his father is BWBS and dam is SWBS, so will he have been graded or something as a youngster to get AES passport or not?
Under sire's name it says 133 WH BWBS, what does the 133 WH mean?
Under Grandsire's name it says DH 221 DK, what does that mean? And under Grand mothers it is the other way round - DK 1209 DH, what is that?
After mare, does St. Pr. St mean state premium? The mares that have this after their names are Hannovarians.

Thanks!! Sorry so many questions!
Also, is XX a TB?

 

[Ciss]

Sire is BWBS graded with a registraton number of WH 133 and was probably automatically accepted as a graded stallion by the AES becuase of it. He is by a Danish-graded stallion with the Danish number DH221 and the grand dam is a highly graded Danish mare with the Danish Head Studbook number DK1209.

The dam is a Swedish warmblood.

StPrSt means State Premium mare (in this case Hannoverian) so graded into the top level for mares in the Hannoverian studbook.

A good quality pedigree. Don't have my books to hand so can't check the names concerned. What are they?

 

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Thank you for explaining that.
I have realised I have missed a generation out but his sire is called "Durfee Allusion" he is by "Atlantus" Who is by "Galantus" and out of "Anet" (these are the two danish!!). Durfee Allusions Dam is "Roulette" the state premium Hann Who is by "Ramino" and out of "Hostess" another state premium Hann.
His mother is called Dutch Brulle" By Dutch Gold who is obviously by Dutch Corage and out of Gold K (who is the one with XX - is she a TB?). Dam is and out of "Tudor's Tamarisk (who just has DK under name but nothing else - what does that mean?).

I must admit, I've only heard of a couple of these names

Thanks for your help!!