Complex sentence: It was founded by Sardar Mir Alam Khan Leghari and brothers, sons and heirs of Sardar Mohammad Rahim Khan Leghari (I) "Leghari Sardar and Tumandar", around 1860.
Split into simpler sentences: It was founded by Sardar Mir Alam Khan Leghari and brothers. They were the sons and heirs of Sardar Mohammad Rahim Khan Leghari (I) "Leghari Sardar and Tumandar", around 1860.