Episcopate
Frithestan's tenure spanned the reigns of two kings, Edward the Elder and his son Aethelstan. His relationship with Aethelstan appears to have been distant: he was absent from the king's coronation on 4 September 925, and despite his seniority among the episcopate he consistently attested royal charters in a lower position.
He governed Winchester, then among the foremost and wealthiest English sees, for more than two decades before resigning in 931.