Twitter Flooded with Fake #RoyalBaby Name Suggestions For Prince Harry and Meghan Markle

News that Meghan Markle had given birth was greeted with heartfelt congratulations on both sides of the Atlantic—and a torrent of baby names for the newborn royal.

"I'm very excited to announce that Meghan and [I] had a baby boy earlier this morning," Prince Harry announced on a video posted to the @sussexroyal Instagram account. "Mother and baby are doing incredibly well."

According to the post, the latest member of the Windsor clan entered the world at 5:26 a.m. Monday morning, weighing 7pounds, 3 ounces. But the Duke and Duchess of Sussex, who opted not to learn the baby's gender before he was born, say they're still contemplating names for their bundle of joy.

Enter Twitter users, who offered suggestions both serious and humorous.

Royal expert Victoria Arbiter is laying odds the couple will choose a name that connects his British and American heritage.

"When we come to boys Alexandra is the Queen's middle name, Alexander is the masculine form," she told CBS. "[And] Alexander Hamilton is one of the founding fathers in the US. So I think there are a lot of names here that work with the British royal family tree but also have strong roots in the U.S."

Oddmakers have also put Arthur on the short list, along with Albert, James, Oliver and Philip, after Harry's grandfather.