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In page Philippa of Lancaster:

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At the age of 55, Philippa fell ill with the plague. She moved from Lisbon to Sacavém and called her sons to her bedside so that she could give them her blessing.[citation needed] Philippa presented her three eldest sons with jewel-encrusted swords, which they would use in their impending knighthoods, and gave each a portion of the True Cross, "enjoining them to preserve their faith and to fulfil the duties of their rank".[1]