History for ready reference, Volume 1, A-Elba
volume 2, pages 14-16.
"The names of beghards and beguines came not unnaturally to be used for devotees who, without being members of any regular monastic society, made a profession of religious strictness; and thus the applications of the names to some kinds of sectaries was easy--more especially as many of these found it convenient to assume the outward appearance of beghards, in the hope of disguising their differences from the church. But on the other hand, this drew on the orthodox beghards frequent persecutions, and many of them, for the sake of safety, were glad to connect themselves as tertiaries with the great mendicant orders. ... In the 14th century, the popes dealt hardly with the beghards; yet orthodox societies under this name still remained in Germany; and in Belgium, the country of their origin, sisterhoods of beguines flourish to the present day. ... Matthias of Janow, the Bohemian reformer, in the end of the 14th century, says that all who act differently from the profane vulgar are called beghardi or turlupini, or by other blasphemous names. ... Among those who were confounded with the beghards--partly because, like them, they abounded along the Rhine--were the brethren and sisters of the Free Spirit. These appear in various places under various names. They wore a peculiarly simple dress, professed to give themselves to contemplation, and, holding that labour is a hindrance to contemplation and to the elevation of the soul to God, they lived by beggary. Their doctrines were mystical and almost pantheistic. ... The brethren and sisters of the Free Spirit were much persecuted, and probably formed a large proportion of those who were burnt under the name of beghards."
_J. C. Robertson, History of Christian Church,