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Hautbellain (French pronunciation: [obelɛ̃], German: Oberbesslingen [ˈoːbɐˌbɛslɪŋən], both lit. 'Upper Bellain/Besslingen', in contrast to "Lower Bellain/Besslingen"; Luxembourgish: Beesslek) is a village in the commune of Troisvierges, in northern Luxembourg. As of September 2026[update], the village has a population of 227.