The Rodent's Gazette is the most famouse newspaper in New Mouse City. Geronimo Stilton edits and is the owner of The Rodent's Gazette.
Possibly Thea Stiltiion
In the sixth book Paws Off, Cheddarface, Geronimo's double, is said to have sold the newspaper to Sally Ratmousen, the owner of The Daily Rat.
The Rodent's Gazette as depicted in the TV show, next to what appears to be The Daily Rat
on the left.
You can see rodents gezette on the right