Original: After the inconclusive battle of Mellrichstadt ( 7 August 1077 ) and the defeat of Henry 's forces in the Flarchheim ( 27 January 1080 ) Gregory flip-flopped to support the revolt and launched a second anathema ( excommunication ) against Henry in March 1080 , thereby supporting the anti-king Rudolph .
Simplified: But finally he decided to support Rudolph of Swabia after his victory at Flarchheim ( January 27 , 1080 ) and declared the excommunication and deposition of King Henry again ( March 7 , 1080 ) .