On Thursday next week, February 27th that is, Prince Jean will appear in court to give his testimony in the Bommeleeër case. The name of Grand Duke Henri's younger brother popped up in the investigation of the series of bombings in Luxembourg during the 1980's here and there. One witness claimed to have seen the prince at Findel Airport in 1985 just hours before a bomb exploded there. Prince Jean, however, has an alibi for the day which is supported by, among others, Louis Giscard d'Estaing, a French politician and son of former French president Valérie Giscard d'Estaing.
Prince Guillaume is also scheduled to appear in court next week to give a statement about a meeting between Prince Jean and state attorney Robert Biever prior to the official investigation at his house in 2006. (For more information about the Bommeleeër case, have a look here.)
The court will already talk about the "lead Prince Jean" today though there probably won't be any new revelations considering that Eugène Beffort, the witness who claimed to have seen the prince at the airport, died in 2012.