The Duchess of Cambridge told Lady Marion Body, a former colleague of her late grandmother's, that it was "so moving" to meet her and to visit Bletchley Park, the famous "spy school" during World War II.
More top news
A cloudy start to the day with top temperatures of 18C (64F).
Immigration levels may need to rise, David Davis has said as he refused to commit to a cap on the number of EU citizens coming to the UK.
MSPs are expected to back Nicola Sturgeon's call for a second independence referendum in a vote at Holyrood on Tuesday.