Afonso Sanches, Lord of Albuquerque (24 May 1289 – 2 November 1329), also known as Alfonso Sanches, was a Portuguese nobleman, Lord of Cerva and Alburquerque.

[4][5] He was also half brother of King Afonso IV.

[6] Afonso was married to Teresa Martins Telo, daughter of João Afonso Telo, the first count of Barcelos,[7] and of Teresa Sánchez, an illegitimate daughter of Sancho IV the Brave, king of Castile and León.

[9] Afonso and his wife Teresa were the founders of the Monastery of Santa Clara in Vila do Conde where both were buried.

[10] The Catholic Church opened a cause for the beatification of Afonso and Teresa on 17 January 1723, and the two were formally declared Servants of God.