Examples from the Web for three sisters
Historical Examples of three sisters
None could see him, for he was wearing the Three-Sisters Hat.
She told him he might have all she possessed; but that she could not give him the ball, since it was her Three-Sisters Ball.
Then the comrade put on the Three-Sisters Hat, which made him invisible, and waited for the princess.
On his way he met the mail-carrier going to Three-Sisters, and sent a note to Lizzī.
The night was far spent when, warrant in hand, he set out to return to Three-Sisters.