Christopher Wren

He was Savilian Professor from 1661 to 1673 and he also occupied the astronomy room at Wadham. Had Wren not found his metier in architecture, he would have been better known as the brilliant mathematician and scientist that indeed he was. He excelled in geometrical demonstrations and Newton considered Wren to be `beyond comparison the leading geometers of this age'. About 1656 Wren solved a problem proposed by Pascal to the geometers of England and retorted by sending a challenge to the French geometers. The challenge went unanswered,

The Sheldonian Theatre was Wren's first large-scale building. It was started in 1664 and the official opening was in 1669. The magnificent painted ceiling, the work of Robert Streater, depicts "Truth descending upon the Arts and Sciences". Theology, with her book with seven seals, is imploring the assistance of Truth in unfolding it. Truth is sitting on a cloud in the middle. On the opposite side of the circle from Theology are the mathematical sciences; Astronomy with the celestial globe bound about by the Milky Way, Geography with the terrestrial globe, Arithmetic with a paper of figures, Optic with the perspective glass (telescope) Geometry with a pair of compasses on her left and a table with geometrical figures on it, and Architecture embracing the capital of a column.

N51 45.279 W001 15.303

But stand on the steps before entering the courtyard in front of the northern doors, and look to the side of the right hand pier. Something very small, but might be to your liking can be found there.
Lets call the value of this W

Well Lewis, getting close to the end, only one to go, will I see you at the funeral?