Sometime before the year 1035, according to Adam of Bremen, Henry went to Orkney as bishop. As Bishop of Orkney, he was probably more of a missionary bishop, and may have been under the metropolitan authority of the Archbishop of York.
Sometime prior to 1035, as noted by Adam of Bremen, Henry ventured to Orkney in his capacity as bishop. In this role, he likely played a more evangelistic part and may have been subordinate to the authority of the Archbishop of York.