Lincoln's Inn Fields is located in Holborn and is the largest public square in London. It was laid out in the 1630s under the initiative of the speculative builder and contractor William Newton, "the first in a long series of entrepreneurs who took a hand in developing London", as Sir Nikolaus Pevsner observes. The original plan for "laying out and planting" these fields, drawn by the hand of Inigo Jones, was said still to be seen in Lord Pembroke's collection at Wilton House in the 19th century, but its location is now unknown.