eler . ▁In ▁ 1 6 8 0 , ▁he ▁married ▁Urs ula ▁von ▁Ber nd or ff . ▁ ▁Sold ier ▁By ▁ 1 6 7 2 ▁he ▁had ▁entered ▁the ▁Bav arian ▁army , ▁but ▁only ▁three ▁years ▁later ▁changed ▁to ▁the ▁Imperial ▁service ▁with ▁his ▁father , ▁then ▁in ▁dis gra ce ▁at ▁court . ▁In ▁ 1 6 8 3 , ▁he ▁was ▁again ▁in ▁the ▁Bav arian ▁service ▁as ▁colon el ▁of ▁a ▁regiment ▁of ▁cu ir ass iers . ▁He ▁gained ▁military ▁ren own ▁through ▁his ▁service ▁in ▁ 1 6 8 3 ▁in ▁the ▁Imperial - Pol ish ▁army ▁of ▁relief ▁that ▁fought ▁the ▁Battle ▁of ▁Vienna , ▁and ▁at ▁the ▁recovery ▁of ▁Bel grade ▁in ▁ 1 6 8 8 . ▁In ▁ 1 6 9 6 ▁he ▁was ▁named ▁President ▁of ▁the ▁Hof krie gs rat ▁( war ▁council ) ▁by ▁Maxim ilian ▁II ▁E manuel , ▁Elect or ▁of ▁Bav aria . ▁Upon ▁the ▁out break ▁of ▁the ▁War ▁of ▁the ▁Spanish ▁Su cc ession , ▁he ▁was ▁re called ▁to ▁the ▁field , ▁and ▁promoted ▁field ▁mar shal ▁in ▁ 1 7 0 2 . ▁ ▁While ▁the ▁Elect or ▁sought ▁to ▁hold ▁off ▁the ▁Imperial ▁troops ▁in ▁eastern ▁Bav aria , ▁d ' Ar co ▁took ▁command ▁in ▁Sw ab ia ▁to ▁act ▁in ▁coord ination ▁with ▁the ▁French . ▁Sent ▁with ▁a ▁strong ▁det achment ▁of ▁the ▁Franco - B av arian ▁army ▁to ▁hold ▁the ▁fort ified ▁town ▁of