Below is an excerpt about this key court ruling from the Daily Telegraph:
"The barrister wife of Ed Miliband has failed to secure a court ruling which campaigners feared would result in historical sites across Britain being blighted by wind farms.
The Appeal Court has denied an attempt by developers, represented by Justine Thornton, to overturn a judgment which blocked four giant turbines being built on farmland in Northamptonshire belonging to the Duke of Gloucester, the Queen's cousin.
The new ruling issued on Tuesday will be hailed as a victory for opponents of wind farms across the country after campaigners said it would determine the protections that should be given to historic sites and stately homes from inappropriate development.
Three judges supported a High Court decision to block the 400ft-high turbines. The site is just a mile from Lyveden New Bield, a Grade I listed unfinished Elizabethan lodge with a moated garden.
The initial case against the development was brought - and won - by the National Trust, English Heritage and East Northamptonshire Council last year."