Osmund, bishop of Sarum or Salisbury, was Norman by birth, the son of Henry, count of Seez; he followed William the Conqueror to England. Here he became Royal Chaplain, until he was promoted to be Chancellor in 1072. He wrote royal letters and charters, obtaining useful experience as an administrator. In 1078 he succeeded Herman as Bishop of Salisbury. The see had been formed by uniting those of Sherborne and Ramsbury and making the new centre at Old Sarum, where the cathedral was built in the same enclosure as the royal castle. Osmund completed and consecrated this cathedral, and formed a chapter with its own constitution, which later became a model for other English cathedrals.