Kingdom of Strathclyde
The "Life of Cathróe of Metz" mentions "Loidam Civitatem" as the boundary between the Norsemen of Scandinavian York and the Celtic Britons of the Kingdom of Strathclyde: if this refers to Leeds, it suggests that some or all of Elmet may have been returned to Brittonic rule for a brief period in the first half of the 10th century before Anglo-Saxon reconquest, but not as an independent state.