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Leonmastiff
The Leonmastiff is a calm, imposing, deeply affectionate companion with a steady, watchful nature. It tends to inherit the Bullmastiff’s protective confidence and the Leonberger’s gentle, family-oriented temperament, making it a loyal dog that bonds closely with its people while remaining reserved with strangers. Most are surprisingly soft-hearted indoors, but they still need early socialization and consistent handling to bring out their best manners.
Height
66-74 cm
Weight
50-74 kg
Lifespan
8-10 years
Coat
Double - Medium
Personality Traits
Energy
3
Trainability
4
Shedding
4
Grooming
3
Affection
5
Good with Kids
4
Good with Dogs
3
Barking
3
Adaptability
3
Playfulness
3
Watchdog
5
Coat: DoubleLength: Medium
Health Considerations
Hip DysplasiaBloatElbow DysplasiaOsteosarcoma
Ancestry Tree

Bullmastiff
Pure×

Leonberger
Pure