


I'm Marietta M., the breeder behind Stolzstein’s Leonbergers located in Hamden, CT. I offer top-quality Leonberger puppies for families who share the same love and passion that I do for these lovely companions. My focus is on maintaining the Leonberger standard by raising structurally sound pups with excellent temperaments and great health. I work hard to produce healthy and happy puppies, and I take great pride in my breeding program.

Why did you start breeding?
What makes your program special?
Where do your breeding dogs live?

Marietta has been certified by Good Dog's screening team for responsible and trusted breeding practices. When you're ready to reach out, feel free to ask any questions about the breed, their program, or specific puppies.
Together, you’ll choose the puppy that’s right for you, stay in touch with regular updates, and plan how to bring your new puppy home.

Marietta may provide a written contract or health guarantee when you purchase a puppy. This helps protect both you and your breeder, ensuring that you both have a clear understanding of the terms of your puppy purchase. If Marietta offers a contract or guarantee, the details will be personalized by them. If you have any questions or want to know more, don't hesitate to reach out to Marietta directly.
You can drive or fly to pick up your puppy from Marietta.
Meet in Hamden, CT
Club memberships
Marietta is a member of Trap Falls Kennel Club and Leonberger Club of America.
Marietta has been a member of Good Dog for almost 5 years
Marietta was screened for responsible practices and has been a member since 2021.

Stolzstein’s Leonbergers meets or exceeds our community standards in these areas:
Great level
Stolzstein’s Leonbergers reports to performing the health tests below on their breeding dogs. Ask your breeder about the tests performed on the parents of your litter. Learn more about health testing for Leonbergers.
Hip Dysplasia
Hip testing reduces the chance of passing down hip dysplasia, which is primarily found in large breed dogs and can cause hip pain and the eventual loss of the function of the hip joint.
Eye Certification (CAER, registered with OFA)
Eye testing reduces the chance of passing down a wide range of hereditary eye illnesses including retinal dysplasia, lens luxation, and glaucoma, which can cause impared vision or blindness.
Thyroid (Autoimmune Thyroiditis, registered with OFA)
A breeder may perform additional tests on their dogs that do not fall into these general categories. These tests may be more uncommon or very specific to a particular breed.
Leukoencephalomyelopathy (LEMP), Polyneuropathy 2, Leonberger and Saint Bernard Type, Polyneuropathy 1, Leonberger and Saint Bernard Type
Genetic testing reduces the chance of passing down a wide variety of hereditary diseases of differing prevalence and severity such as Progressive Retinal Atrophy (an eye disease) and Von Willebrand's Disease (a blood disease).