After spending time in Britain, he was sent as envoy-extraordinary to Prussia in 1795.
From the en.wikipedia.org
In 1791, he was sent as a temporary envoy-extraordinary to Austria, while Sir Robert Keith was ill.
From the en.wikipedia.org
He was then sent as envoy-extraordinary in Brussels until the conquest of the Austrian Netherlands by France.
From the en.wikipedia.org
Appointed envoy extraordinary to Russia in 1764, he succeeded in negotiating with Catherine II an alliance between England and that country.
From the en.wikipedia.org
In 1919 the Dutch government appointed him envoy extraordinary and minister plenipotentiary to Romania, and later to Czechoslovakia, where he retired in 1932.
From the en.wikipedia.org
With that, Terry Waite reaffirmed his credentials as an extraordinary envoy.
From the time.com
An explanation may lie in an extraordinary war of words being waged between the top Saudi envoy to Thailand and his hosts.