sentences:  During the Toungoo dynasty, the Burmese crown undertook a series of reforms that strengthened the stability and relative longevity of the dynasty.While the First Toungoo empire had established the precedent of stitching together independent kingdoms under a single monarch, Restored Toungoo monarchs more successfully subordinated lowland principalities under the Burmese throne's direct control.Senior princes of these principalities were required to live at the Burmese capital under close supervision, and the ceremonial insignia of these provincial rulers was downgraded.