Joseph Smith's third teenaged bride was Flora Woodworth (November 14, 1826 - ca. 1850). The two met through Flora's father, Lucien, who was the architect of the Nauvoo House hotel. She was all of sixteen years old (and likely a virgin) when she married the prophet early in 1843.
Joseph seems to have been very excited about Flora and, according to William Clayton, met with her fairly regularly. He even gave her some bling: a gold watch.
The marriage complicated life for at least a few people. Emma found out about the relationship (no, she hadn't given her permission) and the gold watch, found Flora, bitched her out, and demanded the watch back. Joseph tried to reprimand her and got hell in return. Upon returning from a mission, Orange Wight, Flora's would be suitor, found out about the marriage and stopped his pursuit. He was nineteen.
Still not used to it, Emma?
After Joseph's assassination Flora married a non-member named Carlos Grove, with whom she had three children (but none with Joseph). She confessed to Helen Mar Kimball that marrying a non-member had caused regrettable ostracization in the Mormon community. The Groves tried to move out to Utah, but Flora died en route. She was in her mid-twenties.