Low Hesket is a village in the English county of Cumbria. Low Hesket is on the A6 road 8+1ā2 miles south of Carlisle. This is a former Roman road, and a milestone from that era has been discovered there inscribed IMP C FL VAL CONSTANTINO P F INV AVG, which expands to Imperator Caesar Flavius Valerius Constantinus Pius Felix Invictus Augustus, dā¦Low Hesket is a village in the English county of Cumbria. Low Hesket is on the A6 road 8+1ā2 miles south of Carlisle. This is a former Roman road, and a milestone from that era has been discovered there inscribed IMP C FL VAL CONSTANTINO P F INV AVG, which expands to Imperator Caesar Flavius Valerius Constantinus Pius Felix Invictus Augustus, dating it from the time of emperor Constantine I, who ruled from 307 to 337.