Bobbi Kristina‘s loved ones got into a brawl at an Atlanta hotel which included, bottle-smashing, name calling and blood..

The melee occurred during elder Brown’s birthday dinner. 3 people were injured during the ruckus, one requiring stitches.

After Bobby left Bobbi Kristina‘s hospital bedside, he went to have dinner with his wife, siblings and cousins at their hotel restaurant …where people got wasted, and things blew up. Family sources tell us one of the cousins, Shayne Brown, called Bobby’s older sister Tina … “a crackhead” … and then she went off. We’re told Tina spit in the cousin’s face and cracked a bottle over his head — multiple punches were thrown … by Tina, Bobby, and others. One witness says there was “blood everywhere.” h/t tmz

Police responded, but we’re told Tina had already left the scene by then. No arrests were made.