John Robert Townshend, 1st Earl Sydney PC (9 August 1805 – 14 February 1890) was the son of John Thomas Townshend, 2nd Viscount Sydney.
He married Lady Emily Paget, daughter of Henry Paget, 1st Marquess of Anglesey, on 4 August 1832.
Lord Sydney died in 1890, childless, and all his titles became extinct.
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