Following a legal dispute with his sister-in-law Dagmar Havlová (wife of his brother Ivan M. Havel), Havel decided to sell his 50% stake in the Lucerna Palace on Wenceslas Square in Prague, built from 1907 to 1921 by his grandfather, also named Václav Havel (spelled Vácslav,) one of the multifunctional "palaces" in the center of the once booming pre-World War I Prague. In a transaction arranged by Marián Čalfa, Havel sold the estate to Václav Junek, a former communist spy in France and head of the soon-to-be bankrupt conglomerate Chemapol Group, who later openly admitted that he bribed politicians of the Czech Social Democratic Party.