Newark and Sherwood District Council will begin work today on the UK's first National Civil War Centre.
The £5.4 million project includes a £3.5 million grant from the Heritage Lottery Fund.
Items to go on display include an Iron Age Newark Torc or necklace, an exquisite Anglo-Saxon gold cross, paintings from Newark-born artist Sir William Nicholson and the Byron Press, used to print a number of the early works of the Victorian poet Lord Byron.
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A sunny but chilly start. Cloud increasing with a little rain affecting northern and western areas, especially over the Derbyshire hills.
After a mainly dry, and locally chilly start, cloud will thicken, with some patchy rain possible across northern counties.