Question: When was the daughter of Barbara Kolanka died who became the Queen consort of Poland?
Context: Elizabeth of Bosnia (  1339  – January 1387) was queen consort and later regent of Hungary and Croatia, as well as queen consort of Poland.  Daughter of Ban Stephen II of Bosnia, Elizabeth married King Louis I of Hungary in 1353.  In 1370, she gave birth to a long-anticipated heir, Catherine, and became Queen of Poland when Louis succeeded his uncle, Casimir III.  The royal couple had two more daughters, Mary and Hedwig, but Catherine died in 1378.  Initially a powerless consort with no substantial influence, Elizabeth then started surrounding herself with noblemen loyal to her, led by her favourite, Nicholas I Garai.  When Louis died in 1382, Mary ascended to the throne of Hungary with Elizabeth as regent.  Unable to preserve the personal union of Hungary and Poland, the queen dowager secured the Polish throne for her youngest daughter, Hedwig. Anne of Brittany (French: "Anne de Bretagne" ; Breton: "Anna Breizh" ) (25/26 January 1477 – 9 January 1514 ) was Duchess of Brittany from 1488 until her death, and queen consort of France from 1491 to 1498 and from 1499 to her death.  She is the only woman to have been queen consort of France twice.  During the Italian Wars, Anne also became queen consort of Naples, from 1501 to 1504, and duchess consort of Milan, in 1499–1500 and from 1500 to 1512. Barbara Radziwiłł (Polish: "Barbara Radziwiłłówna" , Lithuanian: "Barbora Radvilaitė" ; 6 December 1520/23 – 8 May 1551) was Queen of Poland and Grand Duchess of Lithuania as consort of Sigismund II Augustus, the last male monarch of the Jagiellon dynasty.  Barbara, a great beauty and already widowed, became a royal mistress most likely in 1543 and they married in secret in July or August 1547.  The marriage caused a scandal; it was vehemently opposed by Polish nobles, including Queen mother Bona Sforza.  Sigismund Augustus, assisted by Barbara's cousin Mikołaj "the Black" Radziwiłł and brother Mikołaj "the Red" Radziwiłł, worked tirelessly to gain recognition of their marriage and to crown Barbara as Queen of Poland.  They succeeded and Barbara's coronation was held on 7 December 1550 at Wawel Cathedral.  However, her health was already failing and she died just five months later.  Even though it was brief, her reign propelled the Radziwiłł family to new heights of political power and influence. Shin Saw Gyi (Burmese: ရှင်စောကြီး , ] ) was a chief queen consort of King Swa Saw Ke of Ava.  She was also a principal queen of kings Kyawswa II of Pinya and Narathu of Pinya.  She was a granddaughter of King Saw Yun, the founder of Sagaing Kingdom, and a sister of King Thado Minbya, the founder of Ava Kingdom.  She was originally a queen consort of Swa, and was given the title of Queen of the Northern Palace and Pinya in fief.  She became the chief queen after Queen Khame Mi died, and became the Queen of the Southern Palace. A queen consort is the wife of a reigning king (or an empress consort in the case of an emperor).  In Brunei, the wife of the Sultan is known as a "Raja Isteri" with prefix "Pengiran Anak", equivalent with queen consort in English, as were the consorts of tsars when Bulgaria was still a monarchy.  A queen consort usually shares her husband's social rank and status.  She holds the feminine equivalent of the king's monarchical titles, but historically, she does not share the king's political and military powers.  A queen regnant is a queen in her own right with all the powers of a monarch, who (usually) has become queen by inheriting the throne upon the death of the previous monarch. Valentina Visconti (died 1393) was Queen consort of Cyprus and titular Queen consort of Jerusalem by marriage to Peter II of Cyprus.  She was the daughter of Bernabò Visconti and his wife Beatrice Regina della Scala. Jutta of Saxony (c. 1223 – before 2 February 1267) was a Danish Queen consort, spouse of King Eric IV of Denmark.  Jutta was the daughter of Albert I, Duke of Saxony.  She married king Erik in 1239, and became junior queen consort, since her husband was junior king, even though there were no senior queen at the time.  She would become senior queen in 1242. Soe Min Hteik-Tin (Burmese: စိုးမင်းထိပ်တင် , ] ) was the chief queen consort of Toungoo from 1510 to 1530.  Her reign title was Thiri Atula Maha Nanda Dewi.  She was a daughter of Viceroy Min Sithu of Toungoo.  In 1485, her first cousin Mingyi Nyo assassinated her father because he had refused give her in marriage to Nyo.  She became the chief queen consort in 1510 when Nyo declared independence from Ava (Inwa).  On 11 April 1511, at the coronation ceremony, she was crowned the chief queen with the title Thiri Atula Maha Nanda Dewi. This is a list of Swedish queens consort and spouses of Swedish monarchs and regents.  The list covers a large time span and the role of a consort has changed much over the centuries.  The first Swedish consorts are spoken of in legends.  The consorts until c. 1000 are often semi-legendary, as are the monarchs.  Between the 14th and 16th century, during periods of de facto Swedish independence from the formal union with Denmark, the Swedish regents did not have the title of king or queen, nor did the spouses of kings have the title of queen consort, although they had the equivalent position.  Due to unions with Finland, Denmark and Norway, many of the Swedish consorts were also consorts of monarchs of these countries.  Consorts listed during the period of 1380–1520 were in fact also consorts to monarchs of Denmark.  The consorts listed during the period of 1814-1905 were also consorts to monarchs of Norway.  Finland was from the Middle Ages a part of Sweden, and although there was no official title, such as "Queen Consort of Finland", from the 16th century until the year of 1809, the queen consort of Sweden also held the title "Grand Princess of Finland." Barbara Kolanka or Barbara Kołówna h. Junosza (end of the 15th century–1550) was a Polish noble lady.  She is best known as the mother of Mikołaj "the Red" Radziwiłł and Barbara Radziwiłł, the latter of whom later became the Queen consort of Poland.
Answer: 8 May 1551