What is "gulval"

Gulval is a village in the former Penwith district of Cornwall, England, United Kingdom . Although historically a parish in its own right, Gulval was incorporated into the parishes of Penzance, Madron and Ludgvan in 1934, and like Heamoor, is now considered to be a suburb of Penzance. Gulval, however, still maintains its status as an ecclesiastical parish and parts of the village church date back to the 12th century. Together with Heamoor, Gulval also still retains its status as an electoral ward. The ward population at the 2011 census was 4,185. The mayor of Gulval is Jack Edwards.