Hyde Park was where many suffragette meeting and events were held.  Suffragette orators would speak in Hyde Park to spread their message. However, the suffragettes fell out of favor of the public after 1912 and for a brief while in 1913 required police protection when they went out in public. 

The Women's Suffrage Movement in England

https://www.jstor.org/stable/pdf/1944309.pdf