Not only the relationship of the known descendants of Prince Árpád to each other, but also their existence is sometimes in question. This paper discusses the possible names of Árpád’s grandchildren, taking into account the written sources – above all the DAI. After reviewing and partially refuting previous research findings, a new solution regarding Árpád’s family tree and the possibilities of princely succession to the throne will be offered with the help of philological methods. The paper draws attention to the importance of textual criticism and the importance of researching the manuscript tradition.