This summarizes a document discussing the development of the Dutch standard language in the 16th and 17th centuries. [1] The document discusses how dialects interacted with and contributed to the developing standard language during this period, with an emphasis on the dialect of Holland forming the basis but southern dialects like Brabantian also making important contributions. [2] Contemporary grammarians from this period such as Van Heule were aware of dialect differences and mentioned them, though they focused on describing common usage. [3] The relationship between contemporary language descriptions in grammars and actual language practice is important to understand the standardization process, as choices had to be made about which variant forms to accept into the standard.