 A disappointed Vaida-Voevod claimed that, with his new career in Parliament, Petrescu had "sacrificed himself" to Brătianu's "politicking".Still active in diplomacy, Petrescu-Comnen had enjoyed a friendly rapport with the Polish Republic and, in 1920, had played a role in negotiating the Polish-Romanian Alliance.From 1922 to 1927, he was also a perennial Romanian delegate to the International Labour Organization (ILO).