Children song, at least as old as Auprès de ma blonde and Greensleeves (see there). Started off as a Jacobinian 16th century lampoon song, to discourage a growing romance between the English Queen Elisabeth I and the French Duc d'Anjou. The French are frogs for Brits. First published in London in 1580 as A Moste Strange Weddinge Of The Frogge And The Mouse. Musically related with When Johnny Comes Marching Home. The chorus sounds like the one in Hinky Dinky Parlez-vous/Mademoiselle From Armentières.
Chubby Parker [as King Kong Kitchie Ki-Me-O; variantion on the same theme]
Uncle Dave Macon [as Governor Al Smith]
anonymous children [Lomax recording as Froggie Went A Courtin']
Pete Seeger [on lp American Folksongs For Children]
Brothers Four [as Frogg; hit US]
Bob Dylan & The Band [same tune in Apple Suckling Tree from the Basement sessions]
Elvis Presley [informal rehearsal]
Mike Oldfield [B-side of Tubular Bells 45]
Bob Dylan [a grandfather telling gory stories to his grandchildren]
A perfect lullaby, all things considered: unnatural sex, lots of disgusting food and a bloody grand finale. Also by Mylo Brown, Roy Rogers & The Sons Of The Pioneers and Spider John Koerner.