What mix is my baby

Hi fellow Rottie lovers! This is my baby girl Queenie. She's the most loyal and gentlest giant I've ever had and I love her so much. I'm just curious what mix she is. She's about 9 y/o now hence the white fur around her snout.

2nd photo is her as a pup. 5th & 6th photos are her fur parents.

She's my big baby and her mix will never ever bother me. I'm just curious ☺️