Elisabeth Rodermund, known as Lisa Middelhauve (born Elisabeth Schaphaus on 28 November 1980) is a German musician, better known as the former lead vocalist and pianist (on the earliest works) of German symphonic metal band Xandria from early 2000, until April 2008, but returned as their singer in 2010, only to finish the remaining live shows due to their second lead vocalist, Kerstin Bischof''s departure.

After Xandria, in late 2010, Lisa Middelhauve was the guest singer for some shows of the French Philharmonic Metal band Whyzdom. And as well, she joined the Austrian Symphonic Metal band Serenity for several shows and the whole European tour 2011 with Delain.