From Wikipedia, the free encyclopedia.
The title of Earl of Onslow was created in the Peerage of the United Kingdom in 1801.
The Earl bears the subsidiary titles of Viscount Cranley of West Clandon (1801) in the Peerage of the UK, and Baron Onslow (1716) and Baron Cranley of Imbercourt (1776) in the Peerage of Great Britain. Hei is also twice (1660, 1674) an English baronet.
Earls of Onslow (1801)

