Rangers were the winners of the Scottish Premier League in 1913.
Rangers won the Scottish League Cup in 1913.
The Scottish League Cup competition wasn't established until 1946.
Sunderland was the winner of the English Premier League in 1913.
The winners of the Belgian League in 1913 were Union Saint-Gilloise.
The Italy League winners of 1913 were SG Pro Vercelli Football Club.
Sparta Rotterdam were the winner of the Eredivisie league in 1913.
Sunderland
Esbjerg beat Boldklubben 1913 (or B 1913).
Esbjerg beat Boldklubben 1913 (or B 1913).
Sunderland have never won the English Premier League. They have been League Champions six times : 1892, 1893, 1895, 1902, 1913, 1936
Boldklubben 1903 (or B 1903) beat Boldklubben 1913 (or B 1913).
The Danish League title started in 1913, so there was no winner in 1901.