The purple shirt, which the midfielder wore when Los Blancos won the Duodécima in Cardiff, fetched an astonishing €642,041.11.
Danke an alle, die diesen unvergesslichen Abend und das tolle Spendenergebnis möglich gemacht haben! Ich werde diesen Abend nie vergessen! pic.twitter.com/YMPlP0F8FW— Toni Kroos (@ToniKroos) June 10, 2017
Bayern Munich coach Jupp Heynckes, former Germany teammate Lukas Podolski among other personalities.
Proceeds from the auction will go to charity causes elected by Kroos' own Foundation.
Over the past two years, his foundation has been working to provide assistance to sick kids in Cologne and Düsseldorf.