Neville-Grenville entered the British House of Commons as Member of Parliament (MP) for Windsor in 1841, representing it until 1847. He sat again for East Somerset from 1865 to 1868, and subsequently for Mid Somerset until his resignation in 1878.
Neville-Grenville was elected as an MP for Windsor in the British House of Commons in 1841. He represented this constituency until 1847. Later, he sat for East Somerset from 1865 to 1868 and then for Mid Somerset until his resignation in 1878.