Daily Telegraph owner Sir David Barclay dies unexpectedly at 86

Billionaire, who owned newspaper titles with his twin brother Frederick, fell ill recently

Sir David Barclay, one of the two billionaire brothers who own the Telegraph newspaper group, has died unexpectedly after a short illness aged 86.

Working in partnership with his identical twin, Frederick, the pair became two of the most successful British businessmen of their time, venturing into hotels, shipping, retail and newspaper ownership over several decades.