In different contexts, it may refer to:
- Isabelle Of Hainaut (1170–1190), queen consort, daughter of Baldwin V, Count of Hainault, wife of Philip II of France.
- Isabella Of Jerusalem (1170–1205).
- Isabella Of Angoulême (c. 1187–1246), queen consort, second wife of John of England, mother of Henry III of England.
- Yolande Of Jerusalem (1212–1228), also known as Isabella II.
- Queen Isabella Of Armenia (died c. 1252).
- Isabella of Aragon (1271–1336), better known as Queen Elizabeth Of Portugal , daughter of Pedro III of Aragon, wife of Denis of Portugal.
- Isabella Of France , wife of Edward II of England, mother of Edward III of England.
- Isabeau Of Bavaria (1369–1435), queen consort of France, wife of Charles VI of France.
- Isabella Of Valois (1389–1409), queen consort, daughter of Charles VI of France, second wife of Richard II of England.
- Queen Isabella Of Portugal (1428–c. 1457), queen consort, 2nd wife of John II of Castile, mother of Isabella I of Castile
- Isabella Of Castile (1451–1504), wife of Ferdinand II of Aragon, mother of Catherine of Aragon, patron of Christopher Columbus.
- Isabella of Portugal, or Isabella Of Asturias , (1470–1498), queen consort, daughter of Isabella I of Castile and Ferdinand II of Aragon, wife of Manuel I of Portugal.
- Isabella Of Portugal (1503-1539) , queen consort, daughter of Manuel I of Portugal, wife of Charles V, Holy Roman Emperor.
- Isabella Jagiello (1519–1559), queen of Transylvania.
- Isabella II Of Spain (1830–1904), daughter of Ferdinand VII of Spain, mother of Alfonso XII of Spain.
- Isabella D'Anjou (c. 1101/1107–1154), Abbess of Fontevrault, wife of William Adelin.
- Isabella Of Antioch (13th century), regent of Jerusalem.
- Isabella Of Mar (c. 1277–1296), first wife of Robert I of Scotland.
- Princess Isabella Of Armenia (died c. 1321).
- Princess Isabella Of Portugal (1397–1471), wife and political advisor of Philip III, Duke of Burgundy.
- Isabella, Duchess Of Lorraine (1400–1453).
- Isabella Of Bourbon (1436–1465), wife of Charles, Duke of Burgundy.
- Marchioness Isabella D'Este (1474–1539), wife of Francesco II of Gonzaga.
- Infanta Isabella Clara Eugenia Of Spain (1566–1633), wife of Archduke Albert of Austria.
- Isabel, Princess Imperial Of Brazil (1846–1921) — Princess Imperial of Brazil, daughter of Pedro II of Brazil, abolished slavery in Brazil.
- Isabelle, Comtesse De Paris (1911–2003).
- Isabel Martínez De Perón , President of Argentina (1974–1976) and third wife of Juan Perón.
- for a more comprehensive list of article names that begin with ''Isabel''
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