The Student Prince is an operetta in four acts with music by Sigmund Romberg and book and lyrics by Dorothy Donnelly. It is based on Wilhelm Meyer-Förster's play Old Heidelberg. The piece has elements of melodrama but lacks the swashbuckling style common to Romberg's other works. The plot is mostly faithful to its source.
It opened on December 2, 1924, at Jolson's 59th Street Theatre on Broadway. The show was the most successful of Romberg's works, running for 608 performances, the longest-running Broadway show of the 1920s. It was staged by J. C. Huffman. Even the classic Show Boat, the most enduring musical of the 1920s, did not play as long – it ran for 572 performances. "Drinking Song", with its rousing chorus of "Drink! Drink! Drink!" was especially popular with theatergoers in 1924, as the United States was in the midst of Prohibition. The operetta contains the challenging tenor aria "The Serenade" ("Overhead the moon is beaming").
Ernst Lubitsch made a silent film also based on Förster's work, titled The Student Prince in Old Heidelberg, starring Ramón Novarro and Norma Shearer. Its orchestral score did not use any of Romberg's score, although it did include Gaudeamus Igitur. The operetta was revived twice on Broadway - once in 1931 and again in 1943. Mario Lanza's performance on the soundtrack of the 1954 MGM film The Student Prince, renewed the popularity of many of the songs. Composer Nicholas Brodszky and lyricist Paul Francis Webster wrote three new songs for the film. Two of these songs - "I'll Walk with God" and "Beloved", as well as "Serenade" - became closely associated with Lanza, although the role was played on screen by British actor Edmund Purdom, who mimed to Lanza's recordings. The operetta was revived in the 1970s and 1980s by the Light Opera of Manhattan and in 1988 by New York City Opera. The operetta was performed each summer at the Heidelberg Castle Festival for several decades beginning in 1974.
Prince Karl Franz is heir to the (fictitious) German kingdom of Karlsberg. He has grown up fatherless, under rather gloomy military conditions of castle life ("By our bearing so sedate"). He has been educated by tutors, in particular, kindly Doctor Engel, who has taught him the songs of his alma mater, the venerable University of Heidelberg ("Golden Days"). Karl Franz has been promised in marriage, since childhood, to the Princess Margaret (Johanna in some versions), but he has never met her. His grandfather, King Ferdinand, sends him to the University incognito, to live as an ordinary student, and improve his social skills. Karl Franz sets off under the watchful eye of Doctor Engel, accompanied by his snooty valet Lutz, who has his own assistant, Hubert.
At Heidelberg, Herr Ruder keeps the rustic Inn of Three Gold Apples ("Garlands Bright"). His beautiful niece Kathie waits tables in the inn's beer-garden. The inn is very popular with the students, who go there to drink and sing ("Drink! Drink! Drink!", "To the Inn We're Marching"). Karl Franz, the finicky Lutz and Hubert arrive for the spring term and take rooms at the Three Gold Apples, to the delight of Engel and the disgust of Lutz ("In Heidelberg Fair", "Welcome to Prince"). Karl falls in love, almost at first sight, with Kathie, who returns his affection ("Deep in My Heart, Dear"). But he is a royal heir, and she is a commoner.
Karl Franz also makes friends with three students, Detlef, Lucas and von Asterberg, and shares the camaraderie of student life, with nights of enthusiastic drinking and singing ("Overhead the Moon is Beaming"). He joins their student corps ("Come Sir, Will You Join Our Noble Saxon Corps?").
As the term passes, Karl Franz and his friends continue to enjoy student life ("Farmer Jacob Lay-a-Snoring", "Students' Life"). By the end of the term, Karl Franz and Kathie are deeply in love.
But then Karl Franz receives a surprise visit from Princess Margaret and her mother. They bring news that the king is ill and commands the prince to return home for the ceremony of betrothal to the princess. After they leave, Karl Franz and Kathie consider eloping to Paris. But Doctor Engel and Count Von Mark (the prime minister of Karlsberg) remind the prince of his duty to his kingdom. Karl Franz reluctantly agrees to obey the king's command. He promises Kathie that he will return soon ("Farewell, Dear"). He takes leave of his friends ("Thoughts Will Come Back to Me"), and the students salute the University ("Gaudeamus Igitur").
Back in Karlsberg, two years pass, with Karl Franz unable to return to Heidelberg. His grandfather has died, and Karl Franz is now King. His life is bound up in court ceremony ("Waltz Ensemble"). Princess Margaret has also had a secret relationship with another man, Captain Tarnitz ("Just We Two"). But as King, Karl Franz must honor the betrothal to Margaret ("Gavotte"). Margaret knows that Karl Franz has long pined for an old love, and she has heard rumors that in Heidelberg, he fell in love with a tavernkeeper's niece.
Word arrives from Heidelberg that Doctor Engel has died there. Karl Franz is persuaded to visit Heidelberg for a brief reunion with his old friends, and he hopes to see Kathie again ("What Memories").
Princess Margaret goes to Heidelberg first, and secretly visits Kathie. Margaret persuades her that for the good of the kingdom, she must break off with Karl Franz. They agree that Kathie will tell Karl Franz she is in love with another man and is going to marry him. Karl Franz will then finally be free to accept Margaret, who has come to love him. Meanwhile, the students of Heidelberg continue their merry ways ("Sing a Little Song", "To the Inn We're Marching (reprise)", "Overhead the Moon is Beaming (reprise)", "Come Boys, Let's All Be Gay Boys").
Karl Franz arrives, meets his old friends and visits Kathie. True to her promise, she tells him of her fictitious new love and plans to marry. Karl Franz resolves to marry Margaret without further delay, but Kathie will always be his true love ("Deep in My Heart Dear (reprise)").
There are quite a few recordings of this score, though most date from the 1950s. No original Broadway cast recording was made, but the 1926 London cast did record some selections for EMI. These 78-RPM records have been transferred to CD on the Pearl Label. Earl Wrightson starred in Al Goodman's recording for RCA Victor. This has not been released on CD. The last issue was on the budget label Camden in 1958.
Decca made an album in 1950 with Lauritz Melchior heading the cast in eight selections. This is on CD paired with The Merry Widow. A more complete recording starring Robert Rounseville and Dorothy Kirsten was made by Columbia Records in 1952. It has been re-released on CD by DRG. Around the same time, Gordon MacRae recorded a 10-inch Lp for Capitol of the score. It was later repackaged on one side of a 12-inch album (The Merry Widow is on the reverse) but that album has been out-of-print since the late 1960s.
RCA Victor recorded Mario Lanza in highlights from the score, released when the singer's voice was used in the 1954 film version. Lanza later re-recorded the score in stereo for the same label, but it is the earlier mono recording that is on CD paired with selections from The Desert Song.
Readers Digest include a selection in their album A Treasury of Great Operettas, first offered for sale in 1963. This stereo recording is available on CD. Also in 1963, as part of a series of stereo recordings of classic operettas, Capitol had MacRae and Kirsten record a full album of the score. Most of it can be heard on the EMI CD Music of Sigmund Romberg along with selections from The Desert Song and The New Moon. Around the same time, Columbia made a new stereo recording with Giorgio Tozzi, Jan Peerce and Roberta Peters. This has not been issued on CD.
A recording was released by CPO in 2012 with WDR Rundfunkchor Köln and WDR Funkhausorchester Köln, conducted by John Mauceri. Dominik Wortig sings Karl-Franz, Anja Petersen is Kathie, Frank Blees is Dr. Engel, Theresa Nelles is Princess Margaret and Christian Sturm is Captain Tarnitz.