Prince William sent a message to Doris Hancock as she reached the halfway point in her walk along Hadrian's Wall.
The 95 year old from Ambleside is doing the walk to raise money for the charity Centrepoint.
The Prince's message was read to her by one of the charity's members.
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Organisers have said the event was a 'massive success that exceeded all expectations'.
Curtis Kirkbride, 27, of Kinniside Avenue, is said to be involved with a domestic assault that happened this weekend.