Lacay, who's previous best score was a 16th-place finish in the 2009 WSOP Main Event for $500k, also earned his first European Poker Tour title.
Lacay defeated Canadian pro Jason Lavallee heads-up up to secure the win although a two-handed deal still left Lavallee with a €538,089 payday.
The two came into the day neck-and-neck for the chip lead and that's how it played out with Lacay and Lavallee battling heads-up for the title.
The two quickly brokered a deal that left €100k on the table and Lacay closed out his 2-1 chip lead fairly quickly.
Litvinov Rises from Short Stack to Third
Finishing third and pocketing €283,000 was Russian Artem Litvinov, who had by far the toughest route to get into the top spots.
Litvinov started the day with just 800,000 in chips to Lacay and Lavalle's 5m+ but steady play and an early double up left him standing as others fell by the wayside.
Among those falling before him were Ismael Bojang, who started fourth in chips but busted first in 8th place for €65,450.
Polish amateur Adrian Piasecki fell in seventh, American Micah Raskin in sixth and Irishman Jason Tompkins, who held the chip lead with 24 players left, burned out in fifth.
Local hope Angelo Recchia made a good run of it, soaring up near the chip lead four-handed, but ultimately fell short in fourth after losing a few big pots in succession to Lacay.
The official final eight and payouts:
1. Ludovic Lacay €744,910* 2. Jason Lavallee €538,089* 3. Artem Litvinov €283,000 4. Angelo Recchia €225,000 5. Jason Tompkins €171,000 6. Micah Raskin €132,000 7. Adrian Piasecki €96,000 8. Ismael Bojang €65,450For a full recap of the final-table action, check the PokerStars blog.
Next stop on the Eruopean Poker Tour is in Prague, Czech Republic, from Dec. 9-15. For more info and to qualify online, visit PokerStars.
Visit www.pokerlistings.com