Аннотация:The introduction to the edition of the fárs-námeh of “Ibn al-Balkhí” by Mr. Le Strange and Professor Nicholson contains a long passage dealing with the end of the Buwayhid or Búyid dynasty. This passage, and particularly its footnotes, show that there are points in this section of history that it would be interesting to clear up. I have attempted to clear them up in what follows. For the purpose I have used a number of Arabic and Persian works, indicated respectively in the footnotes to my account by the letters or words preceding each name in the following list.