Answer the following question: Facts: - dynasty: villehardouin - issue: geoffrey ii alix william ii - death place: '' unknown '' - title: prince of achaea - caption: coat of arms of the principality of achaea - reign: 1209/1210 -- '' c. '' 1229 - successor: geoffrey ii - spouse: elisabeth -lrb- of chappes ? -rrb- - predecessor: william i - mother: celine of briel - death date: '' c. '' 1229 - father: john of villeharouin - birth date: '' c. '' 1169 - name: geoffrey i fr '' geoffroi ier '' - image: armoiries achaie.svg - birth place: '' unknown '' Based on these bullet points, write a short biography describing the life of geoffrey i of villehardouin .
Answer:
geoffrey i of villehardouin -lrb- -rrb- -lrb- '' c. '' 1169 -- '' c. '' 1229 -rrb- was a french knight from the county of champagne who joined the fourth crusade .he participated in the conquest of the peloponnese and became the second prince of achaea -lrb- 1209/1210 -- '' c. '' 1229 -rrb- .under his reign , the principality of achaea became the direct vassal of the latin empire of constantinople .he extended the borders of his principality , but the closing years of his rule were marked by his conflict with the church .