Bebe’s family said: “No words can describe the devastation that has hit our family as try to deal with the loss of our little girl Bebe.”
The family of Alice Dasilva Aguiar said: “Keep smiling and dancing like you love to do our Princess, like we said before to you, you’re always our princess and no one would change that.
“Love from Your Hero Daddy and Mummy.”
A 17-year-old boy from Banks, a few miles north of Southport, was arrested on Monday. He is still being questioned by police.
No motive has been determined yet, although officers said they do not think the attack was terror-related.
The attack has sparked a wave of outrage and sorrow, with commiserations shared by the King and Keir Starmer, among others.
A statement from Merseyside Police’s chief constable Serena Kennedy on Monday read: “My officers were called to reports of a stabbing at 11.47am at an address Southport.