David Cameron had five relatives killed during the First World War.
- Captain John Geddes, a great, great uncle killed in April 1915, name on Menin Gate - which he found last year.
- Second Lieutenant Alistair Geddes, died June 1915 - Royal Scots Fusiliers (also a great,great uncle).
- Captain William Henry Cameron, died December 1914 - Highland Light Infantry (also great, great uncle).
- Captain Francis Mount, died October 1915 - Royal Berkshire regiment (also a great, great uncle).
- Francis Ellison Levita died October 1914 (first cousin).
The Prime Minister apparently researched much of this himself, we were told at a lobby briefing.
As the Lights Out event to remember those who fought and died in WWI happened last night ITV asked our viewers what they did to take part.
Lights on some of Britain's most famous landmarks were extinguished between 10pm and 11pm to remember those who died in WWI.