Bertha Amy Lewis was an English opera singer and actress primarily known for her work as principal contralto in the Gilbert and Sullivan comic operas with the D'Oyly Carte Opera Company.

Patience; or, Bunthorne's Bride, is a comic opera in two acts with music by Arthur Sullivan and libretto by W. S. Gilbert. The opera is a satire on the aesthetic movement of the 1870s and '80s in England and, more broadly, on fads, superficiality, vanity, hypocrisy and pretentiousness; it also satirises romantic love, rural simplicity and military bluster.