 Complete the following phrase:  The last stage in the Growth of the Ottoman Empire brought increased pressures on Wallachia: political control was accompanied by Ottoman economical hegemony, the discarding of the capital in Târgoviște in favour of Bucharest closer to the Ottoman border, and a rapidly growing trade center, the establishment of serfdom under Michael the Brave as a measure to increase manorial revenues, and the decrease in importance of low-ranking boyars threatened with extinction, they took part in the seimeni rebellion of 1655. Furthermore, the growing importance of appointment to high office in front of land ownership brought about an influx of Greek and Levantine families, a process already resented by locals during the rules of Radu Mihnea in the early 17th century. Matei Basarab, a boyar appointee, brought a long period of relative peace 16321654, with the noted exception of the 1653 