On, as thou hast begun, brave youth, and get
The palm from Urbin, Titian, Tintoret,
Brugel and Coxu, and the works outdo
Of Holbein and that mighty Rubens too.
So draw and paint as none may do the like,
No, not the glory of the world, Vandyke.

Urbin, Raphael.
Brugel, Jan Breughel, Dutch landscape painter (1569-1625), or his
father or brother.
Coxu, Michael van Coxcie, Flemish painter (1497-1592).