Beyonce and JAY-Z have named their twins Rumi and Sir Carter, convincing evidence seems to show.
TMZ, while not confirming the names, hinted that Rumi and Sir are the names based on a trademark claim.

The website said a company run by the power couple just filed legal docs to secure the rights to the names, Rumi Carter and Sir Carter. "The trademarks are for fragrances, cosmetics, key chains, baby teething rings, strollers, mugs, water bottles, hair ribbons, playing cards, tote bags, sports balls and rattles and novelty items," the website said.
The duo has tried to trademark the name of their 5-year-old daughter, Blue Ivy Carter, too, but that has hit some legal snags.

Beyonce and JAY-Z welcomed the twins in mid June, but their names have been a closely-guarded secret. Last week a report by MediaTakeOut.com claimed that the newborn boy and girl had been named Shawn and Bea.
The couple hasn't officially revealed the names of their twins and technically haven't confirmed the births at all. But, on June 23, one of Beyonce's inner circle said that he knew the names.
"I know a lot more than most people, but I can't talk about it," Beyonce's choreographer and creative director Frank Gatson Jr. told Us Weekly. "I even know the names! But they have to be the people who announce it."