A series of 19 Sonnets is known as -

 A series of 19 Sonnets is known as Holy Sonnets or Divine Sonnets by John Donne.
John Donne was born in 1572 and died in 1631 who was a leading English poet of the Metaphysical school and dean of St. Paul’s Cathedral, London (1621–31).
- Donne is often considered the greatest love poet in the English language.
- He is also noted for his religious verse and treatises.

He wrote the poem:
- The Ecstasy
- Air and Angels
- The Good Morrow
- The Funeral
- Love Alchemy
- The Undertaking
- The Dream
- Death Be Not Proud

Source: Britannica.com