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In page Alice de Lacy, Countess of Lincoln:

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Tragic accidents resulted in the deaths of Alice's two brothers in childhood. Edmund drowned in a well at Denbigh Castle and John fell to his death from a parapet at Pontefract Castle. This made Alice the heir presumptive to two earldoms, one from her father and one from her mother, which she would inherit if her parents had no further children. With Alice belonging to such an influential and wealthy family, King Edward I arranged for her betrothal "in her 9th year"[2] to his nephew, Thomas of Lancaster, himself heir to the earldoms of Lancaster, Leicester and Derby. They were married on 28 October 1294, when Alice was 13 years old and Thomas about 16.[citation needed]