A Topographical and Statistical description of the County of Middlesex ,etc (1810) by George Alexander Cooke
Berkeley Street, a neat avenue, leads hence to Portman Square, renowned in the annals of novellists; this elegant square occupied in its completion not less than 20 years. It was first begun in
1764, and is accounted next in beauty, as it is in size, to Grosvenor Square. This place is chrefly
memorable as having been the residence of the amiable and benevolent, as well as highly learned
and accomplished Mrs. Montague.
Use the "Show me" link to locate Portman Square on the map. You may need to scroll down to see Portman Square highlighted.