Complex sentence: Elahi's father graduated as a military engineer from what later became the University of Tihrán, later obtaining the rank of general, and worked as Commandant of the Royal Guard for the Sháh of Persia prior to the Constitutional Revolution (1905-1907).
Split into simpler sentences: Elahi's father was the son of graduated as a military engineer from what later became the University of Tihrán. Ultimately obtaining the rank of general, he worked as Commandant of the Royal Guard for the Sháh of Persia prior to the Constitutional Revolution (1905-1907).