Royalty

The Empress Frederick: a memoir

A Life of Napoleon Bonaparte, with a Sketch of Josephine, Empress of the French

English Lands, Letters and Kings, vol. 2: From Elizabeth to Anne

English Lands, Letters and Kings, vol. 1: From Celt to Tudor

English Lands, Letters and Kings, vol. 4: The Later Georges to Victoria

History of Friedrich II. of Prussia

Glimpses of King William IV. and Queen Adelaide

The Life, Times, and Scientific Labours of the Second Marquis of Worcester

At the Court of the Amîr

Memoirs of the Empress Catherine II

Louisa of Prussia and Her Times

William and Mary: A History of Their Most Important Places and Events

The Female Tudor Scholar and Writer

Anne Neville

Ravenous: A Life of Barbara Villiers, Charles II's Most Infamous Mistress

Louise, Queen of Prussia

The Empresses of Constantinople

The Empresses of Rome

The Strangest Family

Elizabeth and Essex