32, on the east side of the street near the northern end, and can be seen from Marylebone Mews (it is visible on Edward Stanford's 1862 map of London).
Prince Francis of Teck died at Miss Clara Nelson Smith's nursing home 15 Welbeck Street on 22 October 1910.
In 1799, Thomas Young established himself as a physician in this street at No 48, now recorded by a blue plaque.
The street was favoured by doctors at the time and remains a leading medical location.
It is close to Harley Street, now more famed for its concentration of private medical practitioners.