sentences:  The insurance group Aviva increasingly have purchased property on the square to redevelop into what has been dubbed a "corporate campus".The Christian theologian John Thomas, founder of the Christadelphian movement, was born at Hoxton Square in 1805, and in 1810 the square was home to Peter Durand, who filed the first patent nationally for tinning food.One of the square's 18th-century residents, John Newton, composed the popular hymn "Amazing Grace".