Asteroid 2570, Porphyro, was discovered on August 6, 1980 by Edward Bowell at the Anderson Mesa unit of Lowell Observatory in Flagstaff, Arizona. It has a period of 4 years, 220 days and is 27.99 kilometers (about 17 2/5 miles) in diameter.
It was named for the hero of John Keats' poem "The Eve of St. Agnes," who managed to win his love Madeline despite her family's dislike of him by slipping into her bedroom on the eve of St. Agnes' feast day (January 21), when girls were supposed to dream of their future husbands; standing by her bed when she awoke; and eloping with her as her family slept off a night of drunken partying.
The Flight of Madeline and Porphyro ,a painting by British artist William Holman Hunt (1827-1910)
The meaning of asteroid Porphyro seems to be: "purple" (the color, purple with rage, aristocratic), possibly, marrying or having a relationship with someone whose family and/or friends are antagonistic.