Nice mare with good pedigree

We have now decided to sell our fine mare as we feel we do not have the time or knowledge she deserves. Contina is a mare born in 2018, by Contefino. She has a brother competing at 140 level. We are selling her as a broodmare or a project for someone with time and patience. Willing to work and fun to handle from the ground, but has been too difficult for us under saddle. Kind to mount, but has been very tense and explosive when ridden. Sensitive but kind in handling. We bought her from her breeder in Germany where she lived her whole life before coming to us. She had been ridden and jumped a little before. No injury history. X-rays were clear with the previous owner.