 Nonetheless, with rare exception, the Burji sultans were all linked to the regime's founder Barquq through blood or mamluk affiliation.The accession of blood relatives to the sultanate was often the result of the decision or indecision of senior Mamluk emirs or the will of the preceding sultan.The latter situation applied to the sultans Baybars, Qalawun, the latter's son, an-Nasir Muhammad and Barquq, who formally arranged for one or more of their sons to succeed them.