proxenete
/ˌprɒksɪˈniːti/ or /ˌprɒksɪˈnɛti/Definitions
1. noun
A mediator or agent who represents the interests of a foreign state or its subjects in a host country.
“In ancient Greece, proxenetae were given official recognition for their services to their city-state.”
2. noun
A person who represents the interests of another, especially in a foreign country.
“The diplomat acted as a proxenete for the ambassador, facilitating communication between the two leaders.”