The study focuses on the Romanian offi cials of the administration and justice of the Kingdom of Hungary which took part, as elected delegates and substitutes with credentials and the right to vote, at the Great National Assembly of Alba Iulia (1 December 1918). The extremely low number of county offi cials compared with the local ones (e.g. village notaries and mayors) reveals that despite the understandable political marginalization of the mid-level bureaucrats of the old regime, there were still local civil servants in which the Romanian population preserved its political trust. In the years following the union, the county offi cials and the notaries took advantage of the context and secured better positions in the new Romanian civil service, while most of the village mayors (recruited mainly from among the well to do peasants) continued their political and administrative activity at local level