The Brotherhood house in Deventer, Holland, founded by Gerhard Groote in 1383, became an important workshop for the production and distribution of manuscripts. Delprat states that the receipts from these sales were for a time the main support of the Brotherhood house. In 1389, a copy of the Bible which had been written out by Brother Jan von Enkhuizen was sold for five hundred gulden in gold.[130] In Liége, the Brothers were known as _Broeders van de Penne_, because they carried quill pens in their caps. Groote seems himself to have taken a general supervision of this business of the production of books, selecting the books to be manifolded, verifying the transcripts, and arranging for the sale of the copies which were passed as approved. Florentius Radewijus had the general charge of the manuscripts (filling the rôle which to-day would be known as that of stock clerk) and of preparing the parchment for the scribes and writing in the inscriptions of the finished manuscripts. Later, with the development of the Order and the extension of its book business, each Brotherhood house had its _librarius_, or manager of the manufacturing and publishing department; its _rubricator_, who added the initial letters or illuminated letters in the more expensive manuscripts; its _ligator_, who had charge of the binding, etc. It was a distinctive feature of the works prepared by the Brothers that they were very largely written in the language of the land instead of in Latin, which elsewhere was, as we have seen, the exclusive language for literature. It was, in fact, one of the charges made by the ecclesiastics against the Order that they put into common language doctrinal instruction which ordinary readers, without direct guidance of the Church, were not competent to understand, and which tended, therefore, to work mischief. In 1398, the Brothers took counsel on the point whether it were permissible to distribute among the people religious writings in Low German, and they appear to have secured the authorisation required. They laid great stress upon the precision of their script, and they were, as a rule, opposed to needless expenditure for ornamentation of text or of covers. Under the influence of Groote, the work of preparing manuscripts of good books was taken up by the monks and the nuns of Windesheim, but, according to Busch, the books produced in Windesheim were but rarely sold. In some cases these seem to have been distributed gratis, while in others they were given in exchange for other books required for the library of the monastery or convent.[131]