Political map of southern Greece in c. 1210, after the establishment of the Crusader states following the Fourth Crusade.
SVG base from File:Greece in 1210V1.svg; based on the original political map by William Miller (1908), with changes and corrections to account for newer scholarship: 

Map date has been moved to 1210, since by 1214, much of Thessaly and Salona had been recaptured by the Epirotes (cf. Fine, John Van Antwerp (1994). The Late Medieval Balkans: A Critical Survey from the Late Twelfth Century to the Ottoman Conquest, p. 68)
The Ghisi brothers are shown as independent of the Duchy of Naxos (cf. Setton, Kenneth M. (1976). The Papacy and the Levant (1204–1571), Volume I: The Thirteenth and Fourteenth Centuries, p. 19 note 78)
Argos and Nauplia are shown in Greek hands, since they were not conquered until 1212.
Corfu is still in Venetian hands, it was not recovered by the Epirotes until 1214 (cf. Fine, John Van Antwerp (1994). The Late Medieval Balkans: A Critical Survey from the Late Twelfth Century to the Ottoman Conquest, p. 68)
The Kingdom of Thessalonica, the Latin Empire, the Empire of Nicaea, and the fief of Lemnos under the Navigajoso family have been added with distinct colours
Monemvasia and the mountainous regions of Parnon, Taygetos, Mani are shown as not fully under Latin control, since Monemvasia was not conquered until 1248 and the mountains remained semi-autonomous even after that (cf. Bon, Antoine (1969). La Morée franque. Recherches historiques, topographiques et archéologiques sur la principauté d’Achaïe, pp. 71-73)
Any further suggestions for corrections or improvement are welcome.
Cplakidas