Elizabeth was regarded as heir presumptive to the throne of Hungary after the death of her brother, as her uncle Louis I had no children.
Charles IV, Holy Roman Emperor, wanted her to marry his eldest son, Wenceslaus.
However, the marriage negotiations were ended in 1370, when a daughter named Catherine was born to Elizabeth's uncle.
Catherine was followed by two sisters, which meant that Elizabeth would not inherit the Holy Crown of Hungary.
[1] In October 1370, Elizabeth married Philip II, Prince of Taranto, a 41-year-old widower and pretender to the Latin Empire.