Between the kingdom of Salonica and the Peloponnesus lie several feudal states apportioned among the crusaders. Of these the duchy of Athens is the most important.
1205 Otto de la Roche, a Burgundian noble, takes possession of Athens. He is master of all Attica and Bœotia, but does homage to Boniface of Salonica.
1207 On death of Boniface Thebes is taken from Otto and added to Salonica, but is returned later by Henry of Romania.
1225 Otto prefers to return to his fief in France and resigns in favour of his nephew, Guy I.
1264 John succeeds his father. He assists Joannes Ducas against the Byzantine army and forms a close alliance with him later on. John captured in the battle of Oreus by the forces of Michael VIII and is released without payment of ransom.
1275 John succeeded by his brother, William I.
1280 William assumes the government of Achaia during minority of Isabella Villehardouin.
1290 Death of William. His son, Guy II, succeeds.
1293 Guy is invited to administer the dominions of the despot of Wallachia, his ward. Anna, widow of Nicephorus of Epirus, prepares to attack him, but withdraws through fear.
1304 Guy on his marriage to Maud of Hainault receives a fief in the Morea, but claims the whole principality of Achaia.