3 ▁in ▁Chal on - sur - Sa ône ; ▁in ▁person ▁at ▁Ar ras ▁May ▁ 1 4 0 1 . ▁ ▁In ▁ 1 4 1 6 , ▁Sig ism und , ▁Holy ▁Roman ▁Emperor ▁elev ated ▁Ama de us ▁from ▁Count ▁to ▁Duke ▁of ▁Sav oy . ▁Mary ▁d uly ▁became ▁Duch ess . ▁From ▁then ▁on wards ▁D uk es ▁ruled ▁over ▁Sav oy . ▁ ▁The ▁couple ▁were ▁married ▁for ▁thirty - six ▁years ▁before ▁Mary ▁died ▁in ▁ 1 4 2 8 ▁at ▁Ch ate au ▁of ▁Th on on ▁les ▁B ains . ▁She ▁is ▁buried ▁in ▁the ▁Ab bey ▁of ▁Ha ute com be . ▁ ▁Issue ▁Mary ▁and ▁Ama de us ▁had ▁nine ▁children , ▁with ▁further ▁descend ants : ▁ ▁Margaret ▁of ▁Sav oy ▁( 1 3 ▁May ▁ 1 4 0 5 ▁– ▁ 1 4 1 8 ). ▁ ▁Anthony ▁of ▁Sav oy ▁( Se ptember ▁ 1 4 0 7 ▁– ▁bef . ▁ 1 2 ▁December ▁ 1 4 0 7 ). ▁ ▁Anthony ▁of ▁Sav oy ▁( 1 4 0 8 ▁– ▁a ft . ▁ 1 0 ▁October ▁ 1 4 0 8 ). ▁ ▁Marie ▁of ▁Sav oy ▁( end ▁January ▁ 1 4 1 1 ▁– ▁ 2 2 ▁February ▁ 1 4 6 9 ), ▁married ▁Fil ipp o ▁Maria ▁Vis cont i , ▁du ke ▁of ▁Milan . ▁ ▁Ama de us ▁of ▁Sav oy ▁( 2 6 ▁Mar ▁ 1 4 1