Complex sentence: Bertran d'Alamanon wrote a poem against the salt tax and Raimon de Tors de Marseilha rebuked Charles for invading the "Regno", while Adam de la Halle dedicated an unfinished epic poem to Charles and Jean de Meun glorified his victories.
Split into simpler sentences: Bertran d'Alamanon wrote a poem against the salt tax and Raimon de Tors de Marseilha rebuked Charles for invading the "Regno". On the other hand, Adam de la Halle dedicated an unfinished epic poem to Charles and Jean de Meun glorified his victories.