The breakaway group got a lead of up to four minutes, but was caught just after the second climb of the Kemmelberg by Philippe Gilbert.
On 25 April, his troops captured the Kemmelberg, although they were later forced to retreat to the Antwerp-Maas defensive line.
He opened his tally with Jasta 2 on 25 April 1918, as part of a huge air offensive launched to support ground assault on Kemmel Ridge.
See also Kemmel Number 1 French Commonwealth War Graves Commission Cemetery.
Prince Franz led this brigade through its victories at Fort Douaumont, Passchendaele and Kemmelberg.