[QUOTE=horsetales;7508759]
Might consider an ISH - Clover Cliste by Clover Hill (might have to scroll down list to him). I’ve only heard great things about his temperament. Gives you a bit of Irish which is common in UL eventers. http://www.idhs.ca/IDHSC%20Stallion%20book%202013%20v2.pdf[/QUOTE]
I’ve always liked Clover Cliste but that might be too much draught if the OP is looking for a really good upper level horse. Clover Cliste is more than half Irish Draught; he would need to be crossed with more TB blood, in my opinion, to produce a TOP level eventer.
I know you said preferably no TBs, but…Sea Accounts is a good suggestion; if you’re interested in staying with Trakehners, there’s also Sea Lion who is a successful 3* horse. He is full TB, but I love his attitude cross country; he looks like a very enjoyable horse to ride. He certainly has the performance record as well, if you think his conformation would complement your mare. I also love my yearling by Coconut Grove (posthumously approved ATA); he is SUPER quiet and moves really well. The mare produces good brains and good movers, but he is the quietest of her four offspring I have bred/seen.
Speaking of Trakehners…There is also the interesting new 3 year old stallion at Chatsworth Stud, Rusticus. I’m really interested to see how this guy develops; he is by the fantastic TB showjumping stallion, Favoritas, so lots of TB blood in there without being full TB. Also at Chatsworth is Halimey Go whose sire is an Anglo Arab; he is moving up the ranks (currently eventing/winning at Intermediate). If you have a modern type mare, he might be a nice cross.
Or what about Grafenstolz? He is a Trakehner with the performance record himself (to 3* level, FEI dressage and puissance jumper competition) and numerous offspring at the FEI levels of eventing. I have not heard that they are easy, but they are performing.
Buddenbrock is available in North America and has produced top dressage horses and eventers, and is known for throwing versatile horses with good rideability.
Stiletto also has a daughter currently competing 3* (Copycat Chloe). He himself has shown 2* level eventing, FEI dressage and in the jumpers. I wouldn’t think he’d add movement, but he shouldn’t hurt your mare’s already good movement. He also seems to be producing good-minded offspring, although I haven’t encountered any personally.
Since you’re willing to consider frozen, what about Chilli Morning? He is now available in the US; can’t get much more proven at 4* level than Chilli (we’ll forgive him for the little blip at Rolex 
)! Certainly has the scope and the movement. He hasn’t had the chance to produce much yet, though, and he was passed on to WFP from Mary King because he was too strong for her, so maybe more “horse” than you’re looking for…
Future Gravitas (by Grafenstolz) and Future Illusion (by Fleetwater Opposition) are both new young event stallions with great pedigrees available through EMCO. Since your mare is a maiden, though, you might want to consider a stallion that is producing good event types. I would suggest Riverman because I do love him, but he is not likely to quiet down your mare.
Also at Hilltop, though, are a couple of nice looking young (again, unproven) stallions: particularly Tresor Mail (by Jaguar Mail) and Ulgar Mail (by Corrado I) are worth checking out as both have high % of TB blood. Tresor Mail, especially, is geared towards eventing and has been successful in the Young Event competitions.
Have a look at the WBFSH rankings: Quite Easy and Contendro I are in the top 40 ranked stallions based on offspring eventing at FEI and have been bred to in NA quite a bit. Both tend to produce good brains, jump and good movement.
