6 ). ▁Ferdinand , ▁Duke ▁of ▁Par ma ▁c eded ▁his ▁du chy ▁to ▁France , ▁and ▁in ▁return ▁his ▁son ▁Louis ▁I ▁was ▁granted ▁the ▁Kingdom ▁of ▁E tr uria ▁( which ▁was ▁created ▁from ▁the ▁Grand ▁Duch y ▁of ▁T usc any ). ▁To ▁make ▁way ▁for ▁the ▁Bour b ons , ▁the ▁H abs burg ▁Grand ▁Duke ▁of ▁T usc any ▁Ferdinand ▁III ▁was ▁ou sted ▁and ▁compens ated ▁with ▁the ▁Elect or ate ▁of ▁Sal zburg . ▁Origin ally ▁the ▁Grand ▁Duch y ▁of ▁T usc any , ▁E tr uria ▁had ▁been ▁c eded ▁to ▁the ▁Bour b ons ▁in ▁ 1 8 0 1 ▁in ▁the ▁person ▁of ▁Charles ▁IV ' s ▁el dest ▁daughter ▁and ▁her ▁Italian ▁cons ort . ▁ ▁Out side ▁the ▁Tre aty ▁of ▁A ran j uez , ▁Spain ▁also ▁secret ly ▁agreed ▁to ▁retro ced e ▁the ▁Louisiana ▁territory ▁( over ▁ 2 ▁million ▁square ▁kilom eters ) ▁back ▁to ▁France ▁in ▁order ▁to ▁secure ▁the ▁Kingdom ▁of ▁E tr uria ▁as ▁a ▁client ▁state ▁for ▁Spain ; ▁Louisiana ▁was ▁first ▁c eded ▁by ▁France ▁to ▁Spain ▁in ▁ 1 7 6 3 ▁at ▁the ▁end ▁of ▁the ▁Seven ▁Years ' ▁War . ▁ ▁Louisiana ▁was ▁d uly ▁transferred ▁to ▁France ▁on ▁ 1 5 ▁October ▁ 1 8 0 2 , ▁after ▁the ▁signing ▁of ▁the ▁Tre aty ▁of ▁A ran j uez . ▁ ▁Napoleon ▁subsequently ▁sold ▁Louisiana ▁in ▁the ▁Louisiana ▁P urchase ▁on ▁December ▁ 2 0 ,