Expected Mastiff litter
Due Feb. 2026
Planned Mastiff litter
Due May 2026
I'm Kara P., the breeder behind Riddermark kennel located in Thompson, CT.
What are the different breed coat types in your program?
What are the different breed coat colors in your program?
Where do your breeding dogs live?
Kara 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.

Kara 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 Kara 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 Kara directly.
You can drive or fly to pick up your puppy from Kara.
Meet in Thompson, CT
3713 miles away
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Kara has been a member of Good Dog for 7 months
Kara was screened for responsible practices and has been a member since 2025.

Riddermark kennel meets or exceeds our community standards in these areas:

All breeds
Mastiff
German Shepherd
Mastiff
About Schnitzel
Schnitzel is super beautiful, gorgeous mover and sweet disposition
Mastiff
About Sandor
Sandor is our very young rising star. Huge bone, flashy ground covering movement. Gorgeous head and a sweet boy!
Mastiff
About Sassy
Sassy finished her championship with very limited showing. Huge bone, lots of expression. Producer of huge bone pups Super sweet docile temperament!
Mastiff
About BabyG
Baby Goliath is a young maturing boy who is docile and sweet natured. Tall with lots of bone. Short strong back with a level top line. Strong rear with great angulation. Super temperament!
German Shepherd
About Morticia
Morticia is a female German Shepherd. Carefully selected as a great representative of her breed, Kara decided to make her part of their program. Kara has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Mastiff
About Goliath
Goliath is a male Mastiff. Carefully selected as a great representative of his breed, Kara decided to make him part of their program. Kara has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
German Shepherd
About Maleva
Maleva is a female German Shepherd. Carefully selected as a great representative of her breed, Kara decided to make her part of their program. Kara has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
German Shepherd
About Drusilla
Drusilla is a female German Shepherd. Carefully selected as a great representative of her breed, Kara decided to make her part of their program. Kara has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
German Shepherd
About Lore
Lore is a female German Shepherd. Carefully selected as a great representative of her breed, Kara decided to make her part of their program. Kara has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
German Shepherd
About Akasha
Akasha has an incredible temperament.Shes brave and loving, super smart, extremely docile and a beautiful mover

German Shepherd

Mastiff
Excellent level
Riddermark kennel 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 German Shepherds.
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.
Elbow Dysplasia Finals (OFA, BVA, SV, FCI)
Elbow testing reduces the chance of passing down elbow dysplasia, which is primarily found in large breed dogs and can cause arthritis in the elbow joint and front leg lameness.
Temperament Test
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.
DNA Disease Panel, Degenerative Myelopathy (DM; SOD1A)
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).