First four Caliphs of Islam are known as Khulfa E Rashideen. Hazrat Abu Bakar R.A, Umar R.A, Usman R.a and Ali R.A are Khulfa E Rashideen of Islam. Interestingly all these Caliphs where also relatives of Prophet Muhammad SAW.
Following are the relations of these Khulfa E Rashideen With Prophet SAW.
Hazrat Abu Bakar R.a Was Father in law of Rasool Allah SAW.
Hazrat Umar Farooq R.a was also father in law of Rasool Allah SAW.
Hazrat Usman R.a was son in law of Prophet SAW.
Hazrat Ali R.a was also son in law Prophet SAW. He was also cousin of Prophet SAW.
Following are the relations of these Khulfa E Rashideen With Prophet SAW.
Hazrat Abu Bakar R.a Was Father in law of Rasool Allah SAW.
Hazrat Umar Farooq R.a was also father in law of Rasool Allah SAW.
Hazrat Usman R.a was son in law of Prophet SAW.
Hazrat Ali R.a was also son in law Prophet SAW. He was also cousin of Prophet SAW.