Dante Gabriel Rossetti, poet and painter, sometimes wrote sonnets to accompany his paintings. The Rossetti archive has a collection of all such double works. Makes interesting reading.

Having discovered the Rossetti archive by chance, I proceeded to search for one on William Blake. And found it too, the William Blake Archive. There are plenty of illustrations here by Blake, for both Blake and non-Blake writing.

Let us see...who else was a painter cum poet?