What is Alfonso XI of Castile?
{{Infobox royalty | name = Alfonso XI | image = Alfonso XI de Castilla (Museo del Prado).jpg | caption = An artist's [[:en:wikt:depiction|depiction]] of Alfonso | succession = [[List of Castilian monarchs|King of Castile]] and [[King of León#List of Leonese monarchs|León]] | reign = 7 September 1312 – 26 October 1350 | coronation = 13 August 1325 | predecessor = [[Ferdinand IV of Castile|Ferdinand IV]] | successor = [[Peter of Castile|Peter]] | regent = {{plainlist| * [[Constance of Portugal]] (1312–13) * [[Peter of Castile, Lord of Cameros|Peter, Lord of Cameros]] and [[John of Castile, Lord of Valencia de Campos|John, Lord of Valencia de Campos]] (1313–19) * [[María de Molina]] (1319–1321) * [[Philip of Castile, Lord of Cabrera and Ribera|Philip, Lord of Cabrera and Ribera]] (1321–25) }} | reg-type = [[Regent]]s | birth_date = 13 August 1311 | birth_place = [[Salamanca]], [[Crown of Castile]] | death_date = {{Death date and age|1350|10|26|1311|8|13|df=yes}} | death_place = [[Gibraltar]], [[Emirate of Granada]] | burial_date = 26 November 1350 | burial_place = [[Royal Collegiate Church of Saint Hippolytus]] | spouses = {{plainlist| * {{marriage|[[Constanza Manuel]]|1325|1327|end=divorce}} * {{marriage|[[Maria of Portugal, Queen of Castile|Maria of Portugal]]|1328}}}} | issue = {{plainlist| * [[Peter of Castile|Peter, King of Castile]] * Illegitimate: * [[Henry II of Castile|Henry II, King of Castile]] * [[Fadrique Alfonso|Fadrique, Lord of Haro]] * [[Tello Alfonso|Tello, Lord of Aguilar de Campoo]] * [[Sancho Alfonso|Sancho, Count of Alburquerque]] }} | house = [[Castilian House of Ivrea]] | father = [[Ferdinand IV of Castile]] | mother = [[Constance of Portugal]] | religion = [[Catholic Church|Roman Catholicism]] | signature = Alfonso XI (firma).svg }} '''Alfonso XI''' (13 August 1311 – 26 October 1350) nicknamed '''the Avenger''' ({{lang-es|el Justiciero}}) was the [[List of C