quality:corruption, linguistic:translation
Birth

Muhammad of Ghor was born in the Ghur region of present-day west-central Afghanistan to the Ghurid ruler Baha al-Din Sam I who ruled his ancestral realm briefly before he died in 1149, when Muhammad of Ghor was a child. His name is variously transliterated as Muizuddin Sam, Shihabuddin Ghuri, Muhammad Ghori and Muhammad of Ghor. According to the Tabaqat-i-Nasiri, his birth name was "Muhammad" which is vernacularly spelt as "Hamad" by the Ghurids. During his childhood, his mother used to call him "Zangi" due to his dark skin tone. After the coronation in Ghazni, he styled himself as "Malik Shihabuddin" and after his occupation of Khurasan, he took the title of "Muizzuddin" or "Mu'izz al-Din".

The synchronous accounts did not write much about Muhammad's exact birth date, although based on the writings of Juzjani - Muhammad was younger to Ghiyath al-Din by three years and few months, who was born in 1140. Therefore, Muhammad's birth year can be dated to 1144.