Grindelwald's wand in Deathly Hallows

In Deathly Hallows, it goes, "...Harry saw the delight upon his handsome face, then the intruder shot a Strunning Spell from his wand and jumped neatly backward out of the window...". When it says "his wand", is it referring to the Elder Wand, or his first wand? Thanks. AlastorMoody 03:43, November 16, 2011 (UTC)

His first. He wouldn't have been able to use the Elder Wand against Gregorovitch, it's true master. Jayden Matthews 10:21, November 16, 2011 (UTC)
So did he overpower Gregorovitch by Stunning him, or by stealing the wand? Because in the Elder Wand article, it says the Wand can switch masters through stealth, as was the case with Grindelwald and Gregorovitch. --AlastorMoody 00:12, November 17, 2011 (UTC)
As far as I'm aware Grindelwald defeated Greogorovitch by stunning him. It would have been unncessary, otherwise. Grindelwald was already perched on the window ledge, and could have escaped at any time. Jayden Matthews 11:39, November 17, 2011 (UTC)