Last night's gale force wind caused extensive damage to the Xarolla Windmill in Zurrieq, which dates back to the time of the knights.
The windmill was built in 1724 and was restored in 1992. It was administered by the local council and was a popular cultural venue.
Last night's wind destroyed nearly all of its vanes.
Contacted by timesofmalta.com, Zurrieq Council said an assessment of the damage was still being made.
The Xarolla windmill was the only one of its kind in working order in Malta.