Lambhill, as part of the Bishop's Forest, shares in much of the medieval history of the surrounding district. The Bishopric of Glasgow, centred on the Cathedral .. the only medieval cathedral on the Scottish mainland .. became one of the largest and wealthiest in the Kingdom of Scotland, bringing wealth and status to the town. Between 1175 and 1178 this position was strengthened even further when Bishop Jocelin obtained for the episcopal settlement the status of Royal Burgh from King William I of Scotland, allowing the settlement to expand with the benefits of trading monopolies and other legal guarantees. Sometime between 1189 and 1195 this status was supplemented by an annual fair, which survives to this day as the Glasgow Fair.

   

Glasgow grew over the following centuries with the first bridge over the River Clyde at Glasgow being recorded from around 1285, giving its name to the Briggait area of the city. The founding of the University of Glasgow in 1451, which started classes within the precinct of the Cathedral, and elevation of the Bishopric to become the Archdiocese in 1492 also increased the town's religious and educational status. The Bishop's Forest and Glasgow were incorporated together and raised to a Regality by James II in 1450.