Canning , despite Pitt 's advice to stay in office , loyally followed him into opposition .
In February 1801 Pitt resigned as Prime Minister due to the King 's opposition to Catholic Emancipation .
Canning , despite Pitt 's advice to stay in office , loyally followed King into opposition .
In February 1801 Pitt resigned as Prime Minister due to the King 's opposition to Catholic Emancipation .