The Duchess of Cambridge donned a pair of headphones and tried to interpret codes during her visit to Bletchley Park where her grandmother worked.
Valerie Glassborow worked as a civilian member of staff, probably as a duty officer, alongside her twin sister Mary.
Wearing an Alexander McQueen outfit, Kate greeted staff on a visit to mark a year-long restoration project at the Buckinghamshire site.
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At least 100 people are feared dead in the bombing including soldiers and Nigerians working for Doctors Without Borders.
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Ms Saward was the first person to waive her right to anonymity when she was raped at the age of 21 and became a sexual violence campaigner.