Television personality Kourtney Kardashian
Television personality Kourtney Kardashian arrives at the 2014 Elton John AIDS Foundation Oscar Party in West Hollywood, California March 2, 2014. REUTERS

It has been over a week since reality star Kourtney Kardashian gave birth to her third child with long-time love Scott Disick. Since the birth took place on Dec. 14, the pair has been keeping their fans waiting in anticipation for the baby's name to be revealed. Last Sunday, Kourtney finally broke her silence and revealed that their new baby is called Reign Aston Disick.

The announcement was made by the proud new mom through her Instagram site where she also posted the first glimpse of the little new born. Kourtney really knows how to remain coy as she revealed only a small peek by showing only the baby's tiny hand in the photo. She captioned the shot: "Madly in love with my little Reign Aston Disick."

Little Reign's royal-sounding name bears a close connection to his father's nickname. Scott fancies calling himself "Lord Disick" and has been going around calling himself by that name. Scott even crafted a flag and logo with the initials LD that he displayed prominently on the family's beach house in The Hamptons last summer.

The new addition to the Kardashian-Disick family and the Kardashian-Jenner clan already has two older siblings, Mason Dash Disick and Penelope Scotland Disick. Mason was also born on Dec. 14 five years ago. Kourtney prepared well for the occasion and the impending birth by throwing Mason a big birthday bash a month early. She gave her firstborn a big "Nightmare Before Christmas" themed party well ahead of the holiday rush and the birth of the new baby.

On December 14, Kourtney's sister Kim stepped in to help and took Mason and Penelope out to see Disney on Ice with her own daughter, North West. Kourtney didn't fail to give a shoutout to Mason as well by posting an Instagram greeting for her little man even as she was about to give birth.

Meanwhile, it remains to be seen which family members were invited into the delivery room. In recent episodes of "Kourtney and Khloe Take The Hamptons," Scott and Kourtney were seen making a bet on who will be invited to witness the birth. All the details could possibly be revealed in Season 10 of "Keeping Up With the Kardashians," which is currently in production.