Is that why Akbar married Salima Begum, wife of Bairam Khan (7 years elder…

Is that why Akbar married Salima Begum, wife of Bairam Khan (7 years elder to Akbar's father Humayun)?
Salima was also cousin-sister of Akbar

So probably Akbar married his sister-cum-auntie so that she can tie "bhai-jaan" Akbar a rakhi every day and every night entire life.