It was created in 1762 for John Olmius, previously Member of Parliament for Weymouth and Melcombe Regis and Colchester. His son, the second Baron, represented Maldon in the House of Commons. However, he was childless and on his death in 1787 the barony became extinct.
It was established in 1762 for John Olmius, formerly a Member of Parliament for Weymouth and Melcombe Regis and Colchester. His son, the second Baron, represented Maldon in the House of Commons. However, he had no children and upon his death in 1787, the barony ceased to exist.