It's the second day of First Minister Carwyn Jones' visit to Belgium and France.
The trip is ahead of 'Wales Remembers' - a programme of commemoration to mark next year's centenary of the start of World War I.
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40,000 people are expected at the motorbike event in the capital this weekend.
The comedian visited the area in 1964 after apparently upsetting people with one of his routines.
The daughter of former Ospreys player Jerry Collins has been pictured recovering in hospital in France after a fatal crash last month.