The Irish Guards' regimental mascot, Conmeal the Irish wolfhound, was given his own sprig of shamrock by the Duchess of Cambridge.
The St Patrick's Day tradition dates back to 1901.
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Uber's chief executive Dara Khosrowshahi said the company "got things wrong".
Together the deal achieved more than £3,200 per square foot.
The man was taken early this morning to a south London police station where he remains in custody.