Akademik

персона грата
ПЕРСОНА ГРАТА{{}}
[NP; only персона declines; fixed WO]
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a diplomatic representative whose candidacy is approved by the government of the country where he will be accredited; by extension a person who is fully accepted and trusted by those in the circles in question:
- persona grata.
     ♦ "Я вам назову десяток имен римских вольноотпущенников, которые стали потом персонами грата" (Гинзбург 2). "I can quote you a dozen examples of released Roman slaves who later became personae gratae" (2a).
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← Transliteration of the Latin persona grata. Often written in its Latin form.

Большой русско-английский фразеологический словарь. — М.: ACT-ПРЕСС КНИГА. . 2004.