which spouse of prince amedeo a mother named princess isabelle of orléans-braganza ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_parent dbr_Princess_Isabelle_of_Orléans-Braganza sep_dot var_uri dbo_spouse dbr_Prince_Amedeo,_Duke_of_Aosta_ attr_open b._1943 attr_close brack_close