Temple Bar was removed from the east end of the Strand in 1878, when the thoroughfare was widened, and the site was marked by the monument which has incurred so much unfavourable criticism. Wren's famous gateway, built in 1670, was re-erected in 1888 in a very different place - at one of the entrances to Theobalds Park, Waltham Cross. Its west side was adored with statues of Charles I and Charles II., and the east with Statues of James I. and Anne of Denmark; and on the spiked gates were once exhibited the heads of malefactors. In Theobalds Park, bought by Sir Henry Meux in 1882, once stood the famous Theobalds Palace, which the first Earl of Salisbury exchanged with James I. for Hatfield. This royal palace was demolished by order of the Commonwealth.
source: The Queen's London : a Pictorial and Descriptive Record of the Streets, Buildings, Parks and Scenery of the Great Metropolis, 1896