Which MLB team's mascot is Lou Seal?

In which division do the Colorado Rockies play? Which MLB team's mascot is Dinger? In which division do the San Diego Padres play? Which MLB team's mascot is Swinging Friar? The Cleveland Guardians franchise was once known by which name? The Washington Nationals franchise was once known by which name? The Milwaukee Brewers franchise was once known by which name? The Houston Astros franchise was once known by which name?