Manuscripts can function as historical documents in terms of the intertextual and extratextual information they contain, and they can be instrumental in this way in enlightening the biography of those involved in the physical circulation of a certain copy of a text. This article is an important example of this as it deals with the scholar Badr al-Rūmī. The article evaluates his biblio-biographic information with regard to certain manuscripts. In this context, the article analyzes the information given in the farāgh records of three manuscripts al-Rūmī copied, two in the field of jurisprudence and one in the field of tafsir. The information in the two ijāzat documents were given to him at the end of a copy of al-Kashshāf and in the preamble of the abridged commentary Badr al-Rūmī wrote on al-Pazdawī’s Uṣūl. The article contextually evaluates this information on al-Rūmī using other biblio-biographic information, in an attempt to understand the meaning of this information in the general framework of the period in which he lived. The article not only highlights awareness of scholars of the Beyliks period such as Badr al-Rūmī but also presents in the case of Badr al-Rūmī at least a meaningful picture of the relationship of the Anatolian Beyliks period’s scholarly tradition with the scholarly centers beyond Anatolia.