in Poland, instead of her half-brothers, his sons by Sophia. Anna died in 1425, which left Hedwig without any strong relatives to support her position. Because Hedwig died (allegedly poisoned) in 1431 without any issue, Anna's descent became extinct before Jogaila's death in 1434. Family In 1380 Anna of Poland married to William, Count of Celje (1361–1392). They had a single surviving child: Anna of Celje (1386–1416), married to Jogaila Grand Duke of Lithuania, named Wladyslaw II as king of Poland. Hedwig Jagiellon, died 23 years old. In 1394 the widowed Anna of Poland married Ulrich, Duke of Teck (died 1432). 1366 births 1425 deaths 14th-century Polish people 14th-century Polish women 15th-century Polish people 15th-century Polish women Polish royalty Polish princesses Piast dynasty Countesses of Celje Daughters of kings