Samblançay, or Semblançay, is a French noble family of Touraine, originally from the merchant class and taking their name from a village in Indre-et-Loire. The founder of the family was Jean de Beaune (d. c. 1489), treasurer of Louis XI, who narrowly escaped death for conspiracy under Charles VIII. His son, , baron de Semblançay, vicomte de Tours, became general of finances before 1497, and from 1518 was superintendent of finances. Convicted of peculation in connection with the supplies for the army in Italy, Jacques de Beaune was executed at Montfaucon on 9 August 1527. His eldest son, , who became archbishop of Tours in 1520, died in the same year as his father.