Gessoes in Portuguese Baroque gilding grounds,part 1: A study of historical documentary sources |
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| Authors: | Isabel Pombo Cardoso Elizabeth Pye |
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| Institution: | 1. Departamento de Conserva??o e Restauro, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Monte da Caparica, Portugal;2. REQUIMTE-CQFB - Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Monte da Caparica, Portugalisabel.pombocardoso@gmail.com;4. Institute of Archaeology, University College London, UK |
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| Abstract: | The surviving gilded and polychrome altarpieces and sculptures in Portuguese churches, and the historical documents relating to them, offer an opportunity for understanding material and technological choices regarding gesso grounds. This paper focuses on the historical documentary research about gessoes — one aspect of a wider research project which also involved investigation of physical/chemical evidence, and archaeological reconstructions of gilded gesso grounds. Documentary research sheds light on the meaning of the terms used in historical documents, and on artists’ choice of materials and practices, production, and trade patterns of materials. It informs technological investigations and conservation decisions. The paper also stresses the importance of the evidence gained by using the historical and archaeological methodology applied in material culture studies, in which documentary, analytical, and experimental information complement and/or elucidate each other, leading to a comprehensive understanding of this technology. |
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| Keywords: | Water gilding gesso grounds Gilding technological choices Gesso grosso Gesso mate Double-structured ground Anhydrite Gypsum |
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