One of Beethoven's lovers was Elise. This comes from the song Fur Elise which actually the "Fur" means For Elise. If you look at the song, you come across a minor part at the end of the song before the melody again. This part supposedly represents when Elise broke up with Beethoven.
Written by Ludwig von Beethoven, Für Elise (trans: For Elise) has long been a part of a beginning piano students repertoire for many many years. It is uncertain who 'Elise' actually was ... it is thought that 'Elise' was short for 'Theresa' by some musical scholars.