https://en.wikipedia.org/wiki/List_of_Christopher_Wren_churches_in_London
Wren took on the supervision of this project when he was thirty-three years old.
https://en.wikipedia.org/wiki/Christopher_Wren
https://en.wikipedia.org/wiki/St_Paul%27s_Cathedral
canaletto painted the cathedral in 1746, 36 years after its completion ...
and again in 1754, 44 years after the completion