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Sidney Sussex College (referred to informally as "Sidney") is a constituent college of the University of Cambridge.
The college was founded in 1596 and named after its foundress, Frances Sidney, Countess of Sussex. It was from its inception an avowedly Puritan foundation: some good and godlie moniment for the mainteynance of good learninge. Oliver Cromwell was among the first students (although his father became ill and he never graduated), and his head is now buried beneath the College's Ante-Chapel.
The main part of the college is Grade I listed. Link
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Grade I listed buildings and structures are of exceptional, even international importance. There are over 6,000 in the country. Only 2.5% of listed buildings are Grade I listed.
In Scotland the classification is Category A
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