In Jonson's poem "To Celia," there are several lines that contain alliteration.
The thirst that from the soul doth rise Doth ask a drink divine;
-- In this line, there are a few words that begin with the letter D: doth, Doth, drink, and divine.
As giving it a hope, that there It could not withered be. But thou thereon didst only breathe, And sent’st it back to me;
-- In this line, there are several words that begin with the TH blend: that, there, thou, thereon.
Since when it grows, and smells, I swear, Not of itself, but thee.
-- In this line, there are three words that begin with the letter S: since, smells, swear