The hotel, named after the Duke of Portland, on whose estate much of the railway ran, was officially opened Christmas 1899 by the Earl of Rosebery Archibald Primrose.
The most notable earl was Archibald Primrose, 5th Earl of Rosebery, who served as Prime Minister from 1894 to 1895.
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Apart from its parish church, the most significant building is the 19th-century Dalmeny House, to the east of the village, which is the home of the Earls of Rosebery.
Rosebery was named after Archibald Phillip Primrose, the fifth Earl of Rosebery, Prime Minister of the United Kingdom in 1894–95.
It was won by the Conservatives led by Lord Salisbury who formed an alliance with the Liberal Unionist Party and had a large majority over the Liberals, led by Lord Rosebery.
James Earl Jones | Prince Edward, Earl of Wessex | Louis Mountbatten, 1st Earl Mountbatten of Burma | Herbert Kitchener, 1st Earl Kitchener | Earl | Frederick Roberts, 1st Earl Roberts | Earl of Derby | Earl Warren | Earl of Pembroke | Robert Harley, 1st Earl of Oxford and Earl Mortimer | Earl of Warwick | Thomas Wentworth, 1st Earl of Strafford | Edward Smith-Stanley, 14th Earl of Derby | Earl of Shrewsbury | William Pitt, 1st Earl of Chatham | Simon de Montfort, 6th Earl of Leicester | Richard Neville, 16th Earl of Warwick | Earl of Leicester | John Scott, 1st Earl of Eldon | Robert Devereux, 2nd Earl of Essex | Robert, 1st Earl of Gloucester | Edward Harley, 2nd Earl of Oxford and Earl Mortimer | Earl of Devon | Douglas Haig, 1st Earl Haig | My Name Is Earl | Edward Hyde, 1st Earl of Clarendon | Earl Scruggs | Earl of March | Richard Howe, 1st Earl Howe | John Russell, 1st Earl Russell |