Spalatensia Porphyrogenitiana Some Issues Concerning the Textual Transmission of Porphyrogenitus’ Sources for the Chapters on Dalmatia in the De Administrando Imperio Ivan BASIΔ (Split) 1. The Problem The identification of written sources which the Byzantine Emperor Constantine VII Porphyrogenitus (913-959) used when he composed the treatise De Administrando Imperio (hereafter referred to as DAI), has attract- ed considerable attention within the historical disciplines for a long time. However, unlike the proliferation of research focusing on analysis of Porphyrogenitusí information about the Croats contained in Chapters 29- 31 and the issue of the chronology, modalities and circumstances of the appearance of this ethnic group in the eastern Adriatic, 1 only handful of studies (especially in the Croatian historiographical output) address the connection between the text of the Emperorís narrative and the known works of earlier authors which may have served as his sources, on the one hand, or the use of the DAI as a source itself, on the other. In other words, the subject of this paper is the DAIís intertextuality which has been notably neglected in comparison to some of its other aspects. There are several reasons for this ñ in particular the dominant popularity of the question of the relationship between Chapter 30 and other chapters deal- ing with the Croats, the issue of the authorship of this chapter and its pos- 1 A thorough overview of the main research strands focusing on Porphyro- genitusí work in Croatian and former Yugoslav historiography has been provided on two occasions by M. LonËar (M. LON»AR, Porfirogenetova seoba Hrvata pred sudom novije literature, Diadora 14 (1992) 375-448; idem, Filoloöka analiza Porfirogenetovih vijesti o Hrvatima, PhD Dissertation, Faculty of Humanities and Social Sciences, University of Zadar 2002). See also M. äVAB, The present situation of historiography about the appearance of Croats on the eastern coast of the Adriatic, in: Etnogeneza Hrvata / Ethnogeny of the Croats, ed. N. Budak, Zagreb 1995, 200-201. A valuable insight was also provided by L. MargetiÊ a decade ago ñ L. MARGETIΔ, Najnovija li- teratura o tzv. seobi Hrvata, Rad Hrvatske akademije znanosti i umjetnosti 485 (2002) 77-128. Recent approaches used by Serbian historians were outlined by Predrag Komatina of the Institute for Byzantine Studies of the Serbian Academy of Sciences and Arts at Belgrade in the handout for his paper ëDela Konstantina Porfirogenita u novijoj srpskoj istoriografiji (1991-2009)í at the Zagreb confer- ence on the works of Constantine Porphyrogenitus. Finally, T. Vedriöís studious introduction which opens the proceedings volume of this conference is very infor- mative ñ T. VEDRIä, Razgovor ugodni: Konstantin VII Porfirogenet i percepcije najranije hrvatske povijesti, Radovi Zavoda za hrvatsku povijest 42 (2010) 13-36. 91