Skip to main content

John of Brienne

John of Brienne (brēĕn´), c.1170–1237, French crusader. He was a count and in 1210 married Mary, titular queen of Jerusalem. Mary died in 1212, and their daughter, Yolande (1212–28), succeeded to the title under John's regency. John played a conspicuous part in the Fifth Crusade (see Crusades), capturing Damietta in 1219, and in 1222 he went to Europe in search of support. He arranged the marriage (1225) between Yolande and Holy Roman Emperor Frederick II, who promptly claimed the crown of Jerusalem. John, claiming the title for himself, joined with a papal army in invading (1229) Frederick's kingdom in S Italy, while Frederick was absent on crusade. In 1228, John was chosen regent during the minority of Baldwin II, Latin emperor of Constantinople (see Constantinople, Latin Empire of), and he became coemperor in 1231. He successfully defended (1236) Constantinople against the joint forces of Emperor John III of Nicaea and Czar Ivan II of Bulgaria.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"John of Brienne." The Columbia Encyclopedia, 6th ed.. . 22 Feb. 2018 <>.

"John of Brienne." The Columbia Encyclopedia, 6th ed.. . (February 22, 2018).

"John of Brienne." The Columbia Encyclopedia, 6th ed.. . Retrieved February 22, 2018 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.