After the assembly of Chlumec and the final victory of the more enlightened party among the brethren, it was resolved to reorganise the community, and to model their institutions to a certain extent on those of the Waldenses. The exact relations between the two communities will perhaps never be known, particularly as the history of the Waldenses or Vaudois is itself very obscure. It is, however, certain that the brethren were fully conscious of an affinity between themselves and the older community. Lucas was intrusted with the mission of visiting the Waldensian communities, and started for Italy and Savoy accompanied by Brother Tuma of Landskron, known as "Němec" (or the German). Among the places they visited was Florence, where they were present at the death of Savonarola (May 23, 1498). Of this journey also Lucas has left us no account. On his return to Bohemia, Brother Lucas obtained a yet more important position in his community. After the death of Matthew an assembly of the brethren which met at Reichenau in 1500 decided to elect several bishops. Lucas was one of those chosen, and appears to have exercised greater influence than his colleagues. The Roman Catholic monk Wolfgang, with whom Lucas engaged in one of his many theological controversies, indeed describes him as "the anti-pope." During the persecution which again befell the Unity at the beginning of the sixteenth century Lucas displayed admirable courage and energy. Rightly believing that ignorance was the cause of many of the attacks on the brethren, he was indefatigable in expounding their real teaching. He wrote an appeal to the king and a letter to the people of Bohemia, protesting against the judgment of those who had declared that the brethren were "worse than Jews and heathens, indeed equal to devils," Lucas also appealed to Erasmus of Rotterdam against the ignorant misjudgment which resulted in so much suffering for the brethren. He despatched two members of the community to Erasmus as bearers of a written "confession" or "apology" of the Unity. Erasmus, with characteristic prudence, declined to be entangled in the controversy.