Hugh Bonneville and John Bishop discover unexpected Irish family ties on DNA Journey

Bishop’s ancestor at one point worked four doors apart from Bonneville’s relative in Dublin

Hugh Bonneville (Ian West/PA)

Actor Hugh Bonneville and comedian John Bishop were blown away after discovering their ancestors worked four doors apart in Dublin and were believed to have marched together in support of workers’ rights.

DNA Journey, which returns on Tuesday for a fourth series on ITV, will see four celebrity pairings unearth their past and make life-changing discoveries in South Africa, Ireland and Norwich and St Helens, in England.