Lower Lorraine disintegrated into a number of duchies, counties and bishoprics. Land was also centralized under religious institutions, including monasteries and bishoprics. During this time, Calvinist clergy held the best bishoprics and deaneries. She also took a keen personal interest in the bishoprics and monasteries within her dominion. This resulted in complex changes in ecclesiastical boundaries, during which several new bishoprics were created. The archbishop of Esztergom was the leader of the ten bishoprics founded by Stephen. The Diocese of Mortlach was one of Scotland's 13 medieval bishoprics. Tyrol was Christianised through the bishoprics of Brixen and Triento. The khanate allowed the establishment of Christian bishoprics (see below). Theobald was instrumental in securing the subordination of the Welsh bishoprics to Canterbury. Otto founded the Bishoprics of Brandenburg and Havelberg. Henry captured the three bishoprics of Metz, Toul, and Verdun. Some of these settlements became seats for royal mints and bishoprics. The see of Strasbourg was one of the wealthiest German bishoprics. In 604, Augustine founded two more bishoprics in Britain.