Analysis of information sources in references of the Wikipedia article "Shah" in English language version.
Shāh ... [a] Persian title, ... sometimes in different compound forms, such as Bādshāh or Pādshāh ... stands for monarch, which has become part of the popular vocabulary over years in a number of South Asian languages including Bengali, Urdu and Hindi, in addition to the languages of neighbouring regions. The last Afghan king Zāhīr Shāh, for instance, used to be called "Bādshāh" until his dethronement in 1973. Used by all the Mughal emperors in India, the title appeared in a few [Bengal] Sultanate inscriptions as well.