However , the Sardinian royal title did not have a specific line of succession and all kings used his own primary title .
The Aragonese did not take possession of the island until 1323 , after a victorious military campaign against the Pisans .
The Sardinian royal title did not have a specific line of succession and all kings used his own primary title .
The Aragonese did not take possession of the island until 1323 , after a victorious military campaign against the Pisans .