How would evolved the situation of the wallachian provinces, and the policy of the Balkans&Central Europe, if Habsbourghs would accepted Michael the Brave as ruller and vassal over united Transylvania, Moldavia, and Wallachia, and his reign would lasted about 20 years? Would he succeded to consolidate the wallachian state, and to impose a wallachian dinasty? How the situation of the zone would becomed?