Katharina Kotromanić (c1336-c1396)

Catherine of Bosnia (Bosnian: Katarina Kotromanić; Slovenian: Katarina Celjska-Kotromanićka) was a Bosnian noblewoman. She was Countess of Cilli by her marriage to Hermann I, Count of Cilli, and a member of the House of Kotromanić by birth.

Family
It is known that Catherine was of Bosnian origins, but her parentage is disputed. Some believes that Catherine was the daughter of Vladislav Kotromanić and his wife Jelena Šubić. Others believe she was the second daughter of Stephen II, Ban of Bosnia, and his third wife Elizabeth of Kuyavia. If Catherine was a daughter of Stephen, she is the sister of Queen Elizabeth of Hungary; if she was a daughter of Vladislav, she was sister of King Tvrtko I of Bosnia.

Catherine's parentage is not clear because there is no evidence to link Catherine to either of the couples.

Marriage
Catherine was married in 1361 to Hermann I, Count of Cilli. The couple were married for twenty-three years and had at least two children:
 * 1) [[Johann Count of Cilli (c1353-1372)|Johann of Cilli, died young
 * 2) Hermann II, Count of Cilli, married Countess Anna of Schaunberg and became father of Holy Roman Empress Barbara.

There is a famous coin with Catherine's image which confirms that Catherine died in the 15th century.