https://www.esb-business-school.de/en/school/news/news/news-en/esb-business-school-one-of-the-best-business-schools-worldwide/

ESB Business School at Reutlingen University has been accredited by AACSB. I'm not sure what the placement is like, but a colleague of mine studied at ESB and its graduates seem to be to be solid people on a level with other well-established FH MBAs, like Pforzheim and Esslingen. The €6,900 fee is acocmpanied by the Semester Contribution of 167.30 EUR per semester, which mostly goes to support student organisations.

Well that is a very low price! The cheapest accredited course I've seen in English.

Yes. Zagreb is around €11,000, in comparison, and that is also Reutlingen's fee for its part-time MBA: https://www.zsem.hr/en/tuition-fee-and-discounts/
https://www.esb-business-school.de/en/degree-programmes/mba/mba-international-management-part-time/#c3677

It looks like there's another school in Croatia that now has AACSB accreditation:

https://find-mba.com/news/2019/07/aacsb-accreditation-awarded-to-11-business-schools

"Faculty of Economics and Business at the University of Zagreb"

Their programs seem to be one-year long master degrees (rather than MBAs.) Stellar value though (less than 4k EUR).