Answer
(Fatwa: 1041/1041=M/1429)
If none of the parents of your father was alive at the time of his death, then his wife and children shall inherit his wealth, but his brothers and sisters shall get nothing. In the case mentioned above, after all due rights preceding inheritance, the entire property and wealth left by the father shall be distributed in 104 shares; out of which 13 shares will go to his wife, 14 shares to each son (*5= 70 shares) while 7 shares shall go to each daughter (*3=21 shares).
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband