In an article published in 2013 by the Revue d’histoire moderne et contemporaine, Olivier Bouquet examined how an why an eminent Ottoman scholar Ali Emiri (1856-1924) accused the famous historian Fuad Köprülü (1890-1966) of having usurped his surname. Five years after the article was published, a Turkish citizen, Kadri Günay, linked to Fuad Köprülü by his wife, wrote to the author arguing to what extent the thesis argued by Ali Emiri should be challenged. The question was reassessed by means of information and documents that Kadri Günay sent to Olivier Bouquet through multiple e-mail exchanges. This article aims to report on these exchanges. They provide a valuable additional insight into the topics surrounding the imperial name Köprülü. They shed new light on genealogical requalification operations that members of prominent Ottoman families have conducted within the last decade. They give a particular illustration of the issues addressed through the reottomanisation of nobility and distinctions: various families associated with the imperial Ottoman past feed a growing genealogical passion; this passion finds a valuable symbolic support from the pious foundations to which these families are attached; the interweaving between genealogical practice and patrimonial anchoring nourishes operations of defense of names shaped under the Ottomans.