▁beyond ▁the ▁vic inity ▁of ▁C ór dob a . ▁To ▁the ▁north , ▁the ▁Christian ▁Kingdom ▁of ▁Ast ur ias ▁was ▁continu ing ▁its ▁program ▁of ▁Re con qu ista ▁in ▁the ▁Dou ro ▁valley . ▁To ▁the ▁south ▁in ▁If ri qi ya , ▁the ▁F at im ids ▁had ▁created ▁an ▁independent ▁cal i ph ate ▁that ▁threatened ▁to ▁attract ▁the ▁alleg iance ▁of ▁the ▁Muslim ▁population , ▁who ▁had ▁suffered ▁under ▁the ▁har sh ▁rule ▁of ▁Abd ul lah . ▁On ▁the ▁internal ▁front ▁the ▁dis content ed ▁Mul adi ▁families ▁( Mus lim s ▁of ▁I ber ian ▁origin ) ▁represented ▁a ▁constant ▁danger ▁for ▁the ▁C ór dob an ▁em ir . ▁The ▁most ▁powerful ▁of ▁the ▁latter ▁was ▁U mar ▁ibn ▁H af sun , ▁who , ▁from ▁his ▁im pre gn able ▁for tr ess ▁of ▁U mar ▁ibn ▁H af sun , ▁controlled ▁much ▁of ▁eastern ▁Al - And alus . ▁ ▁From ▁the ▁very ▁early ▁stages ▁of ▁his ▁reign , ▁Abd ▁al - R ah man ▁showed ▁a ▁firm ▁resolve ▁to ▁qu ash ▁the ▁reb els ▁of ▁al - And alus , ▁cons olid ate ▁central ized ▁power , ▁and ▁re est ab lish ▁internal ▁order ▁within ▁the ▁em ir ate . ▁Within ▁ 1 0 ▁days ▁of ▁taking ▁the ▁throne , ▁he ▁exhib ited ▁the ▁head ▁of ▁a ▁re bel ▁leader ▁in ▁Cord oba . ▁From ▁this ▁point ▁on ▁he ▁led ▁annual ▁exped itions ▁against ▁the ▁northern ▁and ▁southern ▁tribes ▁to ▁maintain