Complex sentence: The current diocesan Bishop of Truro is Tim Thornton, who is assisted by Chris Goldsmith, Bishop suffragan of St Germans (which see was created in 1905).
Split into simpler sentences: The current diocesan bishop, the Bishop of Truro, is Tim Thornton. He is assisted by Chris Goldsmith, the suffragan Bishop of St Germans (which see was created in 1905).