Drochil Castle

In 1578 James Douglas, 4th Earl of Morton and Regent of Scotland, began building a new residence above the Lyne Water, choosing a plan far grander than a simple defensive tower. He intended the building as a retirement palace, a place to withdraw to once his period governing Scotland on behalf of the young King James VI had come to an end.

The design set the building apart from ordinary Scottish tower houses. A wide corridor ran through the structure from end to end on every storey, opening onto suites of apartments on either side, a "double-tenement" plan rarely attempted at this scale. Two round towers, each some 7.6 metres across, anchored diagonally opposite corners, and each carried a pair of gunloops to deny attackers any safe approach to the walls.

The first-floor great hall alone measured roughly 15 by 7 metres, a scale that marked the building out as a palace as much as a stronghold. While construction continued, Morton drew income from the surrounding estate by selling wool to a merchant named John Provand, whose goods were carted from the Lyne valley to Edinburgh by tenants from nearby Linton.

Morton's building work stopped for good in 1581, when he was executed on the orders of King James VI after losing the political struggles that followed his regency. The castle stood no more than half finished at his death, and it was never completed by anyone who came after him, leaving the ambitious double-tenement plan permanently incomplete.

In 1686 the unfinished castle and its estate were purchased by William Douglas, 1st Duke of Queensberry, bringing the property into a family whose descendants still hold it. The outer walls, built from whinstone rubble quarried at nearby Broomlee Hill and dressed with red sandstone, were left to weather as a roofless ruin rather than being finished or rebuilt.

During the early nineteenth century, stone was systematically taken from the abandoned castle to build the adjacent farm, reducing the ruin further and removing material that might otherwise have survived intact. Despite this attrition, enough of Morton's structure survived above ground to keep its unusual plan legible to later visitors and researchers.

The ruin is today protected as a scheduled monument and remains in the ownership of the Duke of Buccleuch, a descendant of the Duke of Queensberry who bought the estate in 1686. Its condition and its distinctive plan have made it the subject of academic study, most notably a mid-twentieth-century paper examining the castle's design as a single unified mass rather than a conventional keep.