Sir William Schwenck Gilbert was an English dramatist, librettist, poet, and illustrator, best known for his collaboration with composer Arthur Sullivan. Together, they created a series of comic operas, including "H.M.S. Pinafore," "The Pirates of Penzance," and "The Mikado," which are still performed and beloved today. Gilbert's witty and satirical lyrics, combined with Sullivan's memorable melodies, have made their works enduring classics of the musical theater genre. Gilbert was also known for his sharp wit and humor, as well as his contributions to the world of illustration and literature.