|Born||5 February 1726
Aston Rowant, Oxfordshire
|Allegiance||Kingdom of Great Britain|
|Commands held||Indian Army|
Seven Years' War
Caillaud was commissioned into Onslow's Regiment in 1743. In 1746, during the Jacobite Rebellion, he took part in the Battle of Falkirk and the Battle of Culloden. In 1752 he was made a Captain in the Madras Army. During the Seven Years' War he was involved with skirmishes with the French.
In 1759 he was made Commander of the Bengal Army. Edmund Burke later claimed that Caillaud had set three official seals to document expressing an intent to kill the Maghul Crown Prince, allegations that Caillaud strongly denied.
He subsequently became Commander of the Madras Army in which capacity he negotiated a treat with Nazim Ali which guaranteed Nazim Ali military support in return for occupation of certain lands by the East India Company.
In 1763 he married Mary Pechell: they had no children.