- newadvent.org cathen/08177a.htmAmadó, R.R. (1910). Isabella I. In The Catholic Encyclopedia. New York: Robert Appleton Company. http://www.newadvent.org/cathen/08177a.htm.
- thoughtco.com queen-isabella-i-of-spain-biography…Isabella I, queen of Castile and León, and her husband Ferdinand II, king of Aragon, combined their lands to form what would become Spain.
- britannica.com biography/Isabella-I-queen-of-…Isabella I was the queen of Jerusalem (1192–1205). Daughter of Almaric I of Jerusalem and Maria Comnena, she succeeded to the throne of Jerusalem after the...
- web.archive.org web/20151105151747/https://ru.…Запрос «Изабелла I» перенаправляется сюда; см. также другие значения. Изабелла I Кастильская, также Изабелла Католичка (исп.
- epicworldhistory.blogspot.com 2012/06/ferdinand-v…Isabella’s imbecilic half brother Henry IV (1425–74), also known as the Impotent, ascended the throne after their father died in 1454.
- instagram.com isabelamerced/
- newworldencyclopedia.org entry/Isabella_of_CastileIsabella of Castile (April 22, 1451 – November 26, 1504) was queen of Castile and Aragon.
- perceptiotr.com Изабелла_I_(королева_Кастилии)2024 hakkında güncel bilgilerle Isabella I (Kastilya Kraliçesi) hakkında bilmediğiniz her şey. Isabella I (Kastilya Kraliçesi)'nun tanımı ve terimi.
- ancient-origins.net history-famous-people/queen-…Queen Isabella I of Castile and León was a key player in several historical events – the Reconquista, Spanish Inquisition, and Christopher Columbus’ 1492.
- msxlabs.org forum/siyaset-ww/367091-i-isabel-…Kocasıyla birlikte İspanya birliğini sağlamaya çalıştı. Papa Aleksander Borgia tarafından İsabella ve Fernando'ya "Katolik Hükümdarlar" unvanı verildi.