consul
noun
[ ˈkɒns(ə)l ]
• an official appointed by a state to live in a foreign city and protect the state's citizens and interests there.
• "the British consul in Israel"
• (in ancient Rome) each of the two annually elected chief magistrates who jointly ruled the republic.
Origin:
late Middle English (denoting an ancient Roman magistrate): from Latin, related to consulere ‘take counsel’.