David Raethrone was on a road trip in 2014 when he stumbled across Hazelwood Demesne in Co Sligo. The Palladian mansion was built in 1725 by architect Richard Cassels for the Wynne family, but a building on the estate was eventually turned into a factory making a thread used in parachutes. By the time Raethrone, a software developer and investor, visited it, it had fallen to ruin. However, Raethorne saw potential and decided to turn it into a distillery. “We were looking at it and thinking this is the most amazing place to make whiskey,” said Raethorne. He founded Lough…