6 . ▁He ▁was ▁killed ▁in ▁an ▁air ▁crash ▁in ▁Al ger ia ▁in ▁ 1 9 4 7 . ▁ ▁An c est ry ▁and ▁family ▁ ▁Philippe ▁François ▁Marie ▁de ▁Haut ec loc que ▁was ▁born ▁on ▁ 2 2 ▁November ▁ 1 9 0 2 ▁at ▁Bel loy - Saint - L éon ard ▁in ▁the ▁department ▁of ▁Som me . ▁He ▁was ▁the ▁fifth ▁of ▁six ▁children ▁of ▁Ad rien ▁de ▁Haut ec loc que , ▁comte ▁de ▁Haut ec loc que ▁( 1 8 6 4 – 1 9 4 5 ), ▁and ▁Marie - Th ér èse ▁van ▁der ▁Cru isse ▁de ▁W az iers ▁( 1 8 7 0 – 1 9 5 6 ). ▁Philippe ▁was ▁named ▁in ▁honour ▁of ▁an ▁ancest or ▁killed ▁by ▁Cro ats ▁in ▁ 1 6 3 5 . ▁ ▁De ▁Haut ec loc que ▁came ▁from ▁an ▁old ▁line ▁of ▁country ▁nob ility . ▁His ▁direct ▁ancest ors ▁had ▁served ▁in ▁the ▁Fif th ▁Cr us ade ▁against ▁Egypt , ▁and ▁again ▁in ▁the ▁E ighth ▁Cr us ade ▁of ▁Saint ▁Louis ▁against ▁Tun is ia ▁in ▁ 1 2 7 0 . ▁They ▁had ▁also ▁fought ▁at ▁the ▁Battle ▁of ▁Saint - O mer ▁in ▁ 1 3 4 0 ▁and ▁the ▁Battle ▁of ▁Font eno y ▁in ▁ 1 7 4 5 . ▁The ▁family ▁managed ▁to ▁surv ive ▁the ▁French ▁Revolution . ▁Three ▁members ▁of ▁the ▁family ▁served ▁in ▁Napoleon ' s ▁Grande ▁Arm ée ▁and