Sir Christopher Wren (20 October 1632 – 25 February 1723) was a 17th century English designer, astronomer, geometer, mathematician-physicist and one of the greatest English architects in history. Wren designed 55 of 87 London churches after the Great fire of London in 1666, including St Paul's Cathedral in 1710, as well as many secular buildings of note. He was a founder of the Royal Society (president 1680–82), and his scientific work was highly regarded by Sir Isaac Newton and Blaise Pascal.
Wren was born at East Knoyle in Wiltshire, the only surviving son of Christopher Wren DD (1589-1658), at that time the rector of East Knoyle and later Dean of Windsor. A previous child of Dr Wren, also named Christopher, was born on 22 November 1631, and had died the same day. John Aubrey’s confusion of the two persisted occasionally into late twentieth-century literature.
As a child Wren "seem'd consumptive". Although a sickly child, he would survive into robust old age. He was first taught at home by a private tutor and his father.
After his father's appointment as Dean of Windsor in March 1635, his family spent part of each year there. Little is known about Wren’s life at Windsor and it is misleading to say that Wren and the son of Charles I became childhood friends there and "often played together".