49ers’ Katie Sowers first openly gay coach in Super Bowl history.

49ers assistant coach Katie Sowers with quarterback Jimmy Garoppolo. (Photo by Michael Zagaris/San Francisco 49ers/Getty Images)

When the San Francisco 49ers defeated the Green Bay Packers 37-20 to win the NFC Championship Game, it also made offensive assistant Katie Sowers a bit of history — as both the first woman and the first openly gay coach in Super Bowl history…