lord protector
Noun
Meaning
Title of the regent for the king(dom) of England and/or king(dom) of Scotland.
Title of the head of state of the Commonwealth
(rare) English rendering of vidame
English rendering of temporary regent, acting for the absent monarchic head of state.
Source: en.wiktionary.orgExamples
The Bush National Security Strategy is the imperial edict of a superpower out to exploit its present supremacy to make itself permanent Lord Protector of the universe.
Adrian and the others live happily together until Raymond runs for Lord Protector and wins.
As Lord Protector, Cromwell was aware of the Jewish community's involvement in the economics of the Netherlands, now England's leading commercial rival.
But, most notably, the office of Lord Protector was still not to become hereditary, though Cromwell was now able to nominate his own successor.
In Stargate Atlantis the "Lord Protector" is a human from a planet in the Pegasus galaxy who is the de facto ruler due to possessing the ATA gene and thus being able to operate the Ancient control chair.
Between the two periods, and due to in-fighting amongst various factions in Parliament, Oliver Cromwell ruled over the Protectorate as Lord Protector (effectively a military dictator) until his death in 1658.