I think he did- he was who I thought of though it has been awhile and I can’t quite remember if he influenced or just encountered them but here is a (very extensive) link to all of the historical characters referenced in the novels.
Makes me want to read them all again.
Also, Uhtred of Bebbanburg is King Alfred’s personal font of Viking knowledge in the Last Kingdom books and tv series and encounters and/or influences many other historical Viking & English power players.