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The average height of these giants is 69-91 cm, and the weight can vary from 68 to 110 kg in males and from 54 to 91 kg in females. The record holder of this breed is a huge English mastiff named Aikama Zorbo, who entered the Guinness Book of Records, with a height of 94 cm and a weight of 155.58 kg. Mastiff aristocrats are known for their power, courage, poise, and peacefulness. They do an excellent job of both the watchdog role and the companion dog role.