Family Tree :

'Affan ibn Abi al-'As = Arwa bint Kuraiz bin Rabi'a

'Uthman ibn 'Affaan =
Ruqayyah bint Muhammad
Umm Kulthum bint
Fakhitah bint Ghazwan
Ramlah bint Shayba
Umm 'Amr bint
Fatima bint al-Walid
Na'ilah bint al-Furafisah

Amnah bint Affaan

Umm Aban bint 'Uthman =
Marwan bin al-Hakam

'Amr bin 'Uthman =
Hafsa bint 'Abdullah

Aban bin 'Uthman =
bint 'Abdullah bin
Umm Sa'id bint
Umm Walad

Sa'id bin 'Uthman

Others:
'Abdullah bin 'Uthman
'Abdullah bin 'Uthman(younger)
'Aishah bint 'Uthman
Umm 'Amr bint
'Umar bin 'Uthman
Khalid bin 'Uthman
Maryam bint 'Uthman
al-Walid bin 'Uthman
Umm 'Uthman bint
Umm Khalid bint
Arwa bint 'Uthman
Umm Aban bint
Maryam bint 'Uthman

Aban
'Ubaidullah
'Abdullah
Ayoub
'Uthman
Da'oud
Ramla

'Abdullah bin 'Amr

Sa'id
'Abdur Rahman
'Amr
Umm Sa'id
'amr (Asghar)
Marwan

Muhammad