Today's main excursion was to Carlisle castle. The main defense in Edwards wars against the Scots.
Founded in 1092 by William II it became the principal fortress of England’s north-western border with Scotland. For over 500 years until the unification of the Scottish and English crowns in 1603 it was the scene of multiple seiges.

Carlisle holds the title for the most seiges at 10 and also the longest seige in English history at 9 months.
Built on the site of a Roman fort in Hadrian's wall dating back to 72 AD, William's castle was probably built of earth and timber.
Henry I visited in 1122 and ordered that it be ‘fortified with a castle and towers’.
This may have been the origin of the stone keep although King David of Scotland, who retook Carlisle after Henry's death in 1135, is said to have built a ''very strong keep'' there. Probably finishing what Henry started earlier.
Carlisle castle also saw action in the War of the Roses, the civil war and the Jacobite rebellion of 1745 led by Bonnie Prince Charlie.
Occupied continuously since 1092 it was garrisonned by troops of the Border regiment from 1818, when they were brought in during a time of civil unrest, right up till 1959.
The last modifications were made with the addition of barracks in 1932.
Half moon battery built for Henry VIII

Graffiti carved by 14th century guards in the keep.
