"Gian Giacomo Poldi Pezzoli, between Milan and Europe: travels, connections and patterns of taste of a mid-nineteenth-century collector." Journal of the History of Collections Volume 36, Issue 3, November 2024, Pages 373–377, https://doi.org/10.1093/jhc/fhae027
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The travel diaries of Otto Mündler, edited by C. Togneri Dowd in the Walpole Society, LI ( 1985), pp. 69-254, in partic. pp. 94, 96, 148, 154, 162.