Alianore Holland, Countess of March (also spelt Eleanor;[citation needed] 13 October 1370 – October 1405) was the eldest daughter of Thomas Holland, 2nd Earl of Kent, and the wife of Roger Mortimer, 4th Earl of March, heir presumptive to her uncle, King Richard II.

Alianore's aunts were Queen Anne of Bohemia, daughter of Charles IV, Holy Roman Emperor, of the Royal House of Luxembourg, and Queen Isabella of Valois, daughter of King Charles VI of France, of the Royal House of Valois.

[5] Roger Mortimer had a claim to the crown through his mother, Philippa Plantagenet, daughter and heiress of Lionel of Antwerp, 1st Duke of Clarence, the third but second surviving son of King Edward III.

[10] The Wigmore chronicler, while criticising Mortimer for lust and remissness in his duty to God, extols him as 'of approved honesty, active in knightly exercises, glorious in pleasantry, affable and merry in conversation, excelling his contemporaries in beauty of appearance, sumptuous in his feasting, and liberal in his gifts'.

[11] Alianore had two sons and two daughters by Roger Mortimer:[12] Secondly, before 19 June 1399, Alianore married Edward Charleton, 5th Baron Cherleton (1371–1421), a Welsh marcher lord, by whom she had two daughters, co-heiresses to their father[16] and, after 1425, co-heiresses to their step-brother, Edmund Mortimer, 5th Earl of March: Eleanor died in childbirth in October 1405.