The creation of New Delhi in India was one of the great architectural, town planning and landscaping projects of the twentieth century. The principal architect of the new capital, Sir Edwin Lutyens, collaborated on the planting of the city and of the neo-Mughal gardens of the Viceroy's House with the gardener, William Robert Mustoe. Lutyens's collaboration with Mustoe on New Delhi was as close as that between Lutyens and Gertrude Jekyll on many of Lutyens's other projects. However, Mustoe is a figure little known today.