Rutherglen Castle was located where Castle Street meets King Street in Rutherglen. It was a large and important castle, having been built in the 13th century; the walls were reportedly 5 feet thick. The castle fell under the control of the English during the First War of Scottish Independence and was later besieged several times by Robert The Bruce. It was eventually retaken by his brother Edward Bruce but was spared destruction, unlike so many of the other castles recaptured from the English.