Attested in this precise form only here and, according to Adler, in the Ambrosian Lexicon (879), so of uncertain location. Perhaps [NF] in Macedonia: Stephanus of Byzantium lists both a people called the Braisoi and an area called Brousis -- home to the Brousoi -- there. Alternatively [CR], a town called Brysis occurs in lists of archiepiscopal sees subject to the patriarch of Constantinople (so e.g. Nicholas Mysticus, Opuscula diversa ed. Westerink, 191b.80); and *bru/sis is homophonous with *broi=sis in Byzantine pronunciation.