Ste. Michelle Wine Estates subsidiary Stag's Leap Wine Cellars has filed a trademark infringement suit against Treasury Wine Estate's Stags' Leap Winery over use of the word "Stag" on wines not sourced from the Stag's Leap District or Napa Valley. SMWE alleges, among other things, false designation of origin, unfair competition, false advertising and dilution, per the complaint filed in the US District Court of Northern California.