Question: What year was the poet who wrote Isabella born?

Context articles: Izabela Sadoveanu-Evan
Isabella Kelly
Ismail Ahmedani
Isabella, or the Pot of Basil
Isabella Jagiellon
Isabella Bordoni
Isabella Fyvie Mayo
John Keats
Isabella Cervoni
Isabella Markham

Izabela Sadoveanu-Evan (] , last name also Sadoveanu-Andrei, first name also Isabella or Izabella; born Izabela Morțun, pen names I.Z.S.D. and Iz.
 Sd.; February 24, 1870 – August 6, 1941) was a Romanian literary critic, educationist, opinion journalist, poet and feminist militant.
 She spent her youth advocating socialism, and rallied with left-wing politics for the remainder of her life, primarily as a representative of Poporanist circles and personal friend of culture critic Garabet Ibrăileanu.
 Under Ibrăileanu's guidance, Sadoveanu wrote for "Viața Românească" review, where she tried to reconcile ethnic nationalism and traditionalism with aestheticism.
 As literary critic, she championed the recognition of Symbolism as an independent cultural phenomenon, and reviewed modern developments in English literature.
Isabella Kelly, née Fordyce, also Isabella Hedgeland (born at Cairnburgh Castle in the Scottish Highlands and baptised on 4 May 1759 – died on 25 June 1857 in London) was a Scottish novelist and poet.
Ismail Ahmedani (1930–2007) (اسماعیل احمدانی) was a Saraiki novelist, fiction writer, and promoter of the Saraiki language.
 He was born 1 January 1930 in a small village "Khoi" in Rajanpur District, British India (now Pakistan).
 His father Muhammad Moosa Khan was a famous writer and teacher.
 He earned a BA in art from Dera Ghazi Khan after which Ismail Ahmedani started his life as a teacher from Bahawal pur and then Khan pur district Rahim Yar Khan.
 After getting his LL.B from Sindh University in Hyder Abad Pakistan he started his legal practice in Sanghar Sindh.
 Firstly he began to write in Urdu.
 Sometimes he wrote in his mother tongue Saraiki.
 He wrote some poems in Saraiki but later he decided to write prose.
 He wrote several symbolic fictions.
 He wrote two novels named "Cholian" (waves) and "Amar Khani" (living story) He was awarded Khwaja Ghulam Farid award by the Pakistan Academy of Letters on "Chholian".
 He wrote a travelogue named "Peet de Pandh" (travel of love) and won an award for this writing.
 He wrote several articles on legendary Saraiki poet Khawaja Farid and also several articles about Saraiki language and linguistics.
 He was a critic of Saraiki literature and wrote several articles on this topic.
 He wrote his autobiography named "Yadden De Kak Muhal" (places of memories).
 In 2013 he was again awarded the Khwaja Ghulam Farid award for literature in the Saraiki language for this autobiography.
Isabella, or the Pot of Basil (1818) is a narrative poem by John Keats adapted from a story in Boccaccio's "Decameron" (IV, 5).
 It tells the tale of a young woman whose family intend to marry her to "some high noble and his olive trees", but who falls for Lorenzo, one of her brothers' employees.
 When the brothers learn of this they murder Lorenzo and bury his body.
 His ghost informs Isabella in a dream.
 She exhumes the body and buries the head in a pot of basil which she tends obsessively, while pining away.
Isabella Jagiellon (Hungarian: "Izabella királyné" ; Polish: "Izabela Jagiellonka" ; 18 January 1519 – 15 September 1559) was the oldest child of Polish King Sigismund I the Old and his Italian wife Bona Sforza.
 In 1539, she married John Zápolya, Voivode of Transylvania and King of Hungary, becoming Queen consort of Hungary.
 At the time Hungary was contested between Archduke Ferdinand of Austria who wanted to add it to the Habsburg domains (see Royal Hungary), local nobles who wanted to keep Hungary independent (see Eastern Hungarian Kingdom), and Sultan Suleiman the Magnificent who saw it as a vassal state of the Ottoman Empire (see also Little War in Hungary).
 While Isabella's marriage lasted only a year and a half, it did produce a male heir – John Sigismund Zápolya born just two weeks before his father's death in July 1540.
 She spent the rest of her life embroiled in succession disputes on behalf of her son.
 Her husband's death sparked renewed hostilities but Sultan Suleiman established her as a regent of the eastern regions of the medieval Kingdom of Hungary on behalf of her infant son.
 The region developed as a semi-independent buffer state noted for its freedom of religion.
 Ferdinand, however, never renounced his claims to reunite Hungary and conspired with Bishop George Martinuzzi who forced Isabella to abdicate in 1551.
 She returned to her native Poland to live with her family.
 Sultan Suleiman retaliated and threatened to invade Hungary in 1555–56 forcing nobles to invite Isabella back to Transylvania.
 She returned in October 1556 and ruled as her son's regent until her death in September 1559.
Isabella Bordoni (born 1962 in Rimini, Italy) is an Italian poet, writer, visual and sound artist, and performer.
Isabella Fyvie Mayo (December 10, 1843 - May 13, 1914) was a Scottish poet, and novelist who also wrote under the pen name Edward Garrett.
John Keats ( ; 31 October 1795 – 23 February 1821) was an English Romantic poet.
 He was one of the main figures of the second generation of Romantic poets, along with Lord Byron and Percy Bysshe Shelley, despite his works having been in publication for only four years before his death at age 25 in the year 1821.
Isabella Cervoni (Colle Val d'Elsa, 1575–1600) was an Italian poet of the Counter-Reformation period, active between 1590 and 1600.
 She wrote encomiastic and polemical poems addressed to numerous secular and religious dignitaries of the Italian Renaissance, including Pope Clement VIII, Maria de' Medici, Christina of Lorraine and Henry IV of France.
 She was praised for her talent and ambition by Cristoforo Bronzini in his 1625 dialogue "Della dignità delle donne, dialogo…settimana prima e giornata quarta" as having "given the world many beautiful and spiritual compositions" despite her "most tender age."
Isabella Markham (28 March 1527 – 20 May 1579), was an English courtier, a Gentlewoman of the Privy Chamber of Queen Elizabeth I of England and a personal favourite of the queen.
 Isabella Markham was muse to the court official and poet John Harington, who wrote sonnets and poems addressed to her, before and after they married.
 Thomas Palfreyman dedicated his "Divine Meditations" to her in 1572.