[...] in Lucca Cathedral [unlike that of Florence] it seems instead that the neglect [of the stained glass windows] has been very great, and perhaps … - Enrico Ridolfi

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[...] in Lucca Cathedral [unlike that of Florence] it seems instead that the neglect [of the stained glass windows] has been very great, and perhaps no thought was ever given to repairing them until, due to the quantity of missing glass, they were in such a state that they could no longer be ignored; and even then, instead of having them carefully restored by a skilled craftsman, the repairs were carried out in such a way that they could not have been done worse. The only round window that remains and those of the choir, especially the large stained glass window that had suffered the most, clearly show how the work was carried out; that is, broken or damaged pieces of glass were replaced with other pieces of glass at random, of whatever colour they were, if coloured ones were available (perhaps remnants of some of the small windows that had been completely destroyed) or white ones, which were given any colour, without any concern for whether the designs of the figures and ornaments were badly distorted and disfigured. (p. 221)