Rottweilers take their name from the German market town of Rottweil, where drover dogs moved cattle to market and pulled butchers' carts. When railways ended that work, the breed moved into police, guard and search roles. The result is a compact, powerful dog with a short black coat, rust markings and a calm, watchful way of sizing up new people.
At home, many Rottweilers are affectionate, playful and happy to lean on their people, though dogs vary. In Pasadena, that mix of strength and protectiveness makes early socialization, good leash manners and consistent, reward-based training important from the first week. Adult dogs are often easier to match to a household because their personalities are already showing.