Q:Facts:   - issue: ferdinand , marquis of tortosa john of aragon    - succession: queen consort of aragon    - reign: 1329 -- 36    - mother: constance of portugal    - spouse: alfonso iv of aragon    - death date: 1359 -lrb- aged 51 -- 52 -rrb-      - house: house of ivrea    - father: ferdinand iv of castile    - birth date: 1307    - name: eleanor of castile    - image: sepulcro . sra . del manzano de castrojeriz -- 4.jpg de la reina leonor . iglesia de ntra    - religion: roman catholicism    - consort: yes   Based on these bullet points, write a short biography describing the life of eleanor of castile -lrb- 1307 -- 1359 -rrb- .
A:
eleanor of castile -lrb- 1307 -- 1359 -rrb- was the eldest child of ferdinand iv of castile by his wife constance of portugal .she was queen of aragon .she was engaged to marry james , eldest son of james ii of aragon and blanche of anjou .james refused to consummate the marriage , wishing instead to be a monk .he renounced his right to the throne in 1319 , and the marriage was dissolved .in february 1329 , eleanor married james ' widowed younger brother , alfonso iv of aragon .they had two sons : ferdinand , marquis of tortosa -lrb- 1329 -- 63 -rrb- , married maria , marchioness of tortosa ; john -lrb- 1331 -- 58 -rrb- , married in 1355 to isabel núñez de lara -lrb- daughter of juan núñez iii de lara -rrb- and was killed by order of his cousin , peter of castile .alfonso died in 1336 .his son from his first marriage became peter iv of aragon .while peter was at zaragoza , an embassy from castile met him and asked that he promise to uphold the donations of land his father had made to eleanor , but he refused to give a clear answer as to the legitimacy of the donations .eleanor became a disruptive influence in aragon , plotting to advance the interests of her own sons over those of her stepson .peter at first moved to confiscate her revenues and prosecute her protector , pedro de ejérica , but in 1338 he confirmed her and her sons in possession of their domains , not wishing to antagonise castile at a time when spain was threatened by a new moorish invasion .she continued to plot against her stepson , eventually returning to castile where she was also a disruptive influence .eleanor went home to castile with her children while peter iv of aragon was fighting peter of castile .her son , john , was imprisoned by the king of castile and then murdered , but her son ferdinand stayed away .eleanor was imprisoned and murdered on the orders of peter in 1359 in the castle of castrojeriz in castile , along with juana de lara .her remains are believed to be interred in the iglesia de nuestra señora del...