▁West ▁Frank ish ▁king , ▁Charles ▁the ▁Bald , ▁who ▁granted ▁them ▁w ard ship ▁of ▁the ▁march ▁against ▁the ▁Vik ings ▁while ▁the ▁march ▁against ▁the ▁Bret ons ▁was ▁granted ▁to ▁Robert ▁the ▁Str ong . ▁ ▁Charles ' ▁patron age ▁of ▁the ▁family ▁prov oked ▁the ▁je alous y ▁of ▁the ▁R org on ids , ▁the ▁most ▁powerful ▁family ▁local ▁to ▁Ne ust ria ▁and ▁then ▁cont rolling ▁the ▁duc atus ▁C en om ann icus ▁( M aine ). ▁In ▁ 8 6 5 , ▁they ▁al lied ▁with ▁Sal oman ▁of ▁Brit t any ▁and ▁attacked ▁the ▁brothers . ▁Charles , ▁to ▁att ain ▁peace , ▁took ▁the ▁march ▁back ▁and ▁gave ▁it ▁to ▁G au z fr id , ▁a ▁R org on id . ▁ ▁A ▁char ter ▁of ▁ 8 7 9 ▁mentions ▁Ber eng ar ▁and ▁his ▁brothers ▁taking ▁part ▁in ▁the ▁foundation ▁of ▁the ▁college ▁of ▁Gem ünd en . ▁Ev ident ly , ▁the ▁death ▁of ▁Louis ▁the ▁German ▁in ▁ 8 7 6 ▁had ▁allowed ▁them ▁to ▁return ▁to ▁the ▁court ▁of ▁Carl oman . ▁ ▁His ▁daughter ▁O ta ▁became ▁wife ▁of ▁Arn ulf ▁of ▁Car inth ia . ▁ ▁S ources ▁Gu ill ot el , ▁Hub ert . ▁" U ne ▁autre ▁mar che ▁de ▁Ne ust rie ." ▁in ▁Christian ▁S ett ip ani ▁and ▁Kath ar ine ▁S . ▁B . ▁Ke ats - R oh an , ▁On om ast ique ▁et ▁Parent é ▁dans