well-governed
/ˌwɛlˈɡʌvənd/adjective
1Of a person (now archaic ), or a person's character, mind, behaviour, etc.: temperate, measured, self-controlled; reasonable, sensible.
2Of a state, society, etc.: ruled by a good or effective government, well-ruled.
Origin
Late Middle English; earliest use found in John Wyclif (d. 1384), theologian, philosopher, and religious reformer. From well + governed.