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Cognomen 자 (子 , Ja
, 紫
, and others...) , around the globe, is a widespread family name. The family name 자 is characteristic of Mongolia, where it is a widespread surname, Myanmar, where it is quite a common surname, and China (explore the name in all countries). Measured by absolute frequency, it is commonest in China, India, and Mongolia. Likewise, 자 is the forename as well as the last name.