▁Mon archy ▁and ▁the ▁pro clam ation ▁of ▁the ▁Aust rian ▁Republic . ▁The ▁library ▁complex ▁includes ▁four ▁museum s , ▁as ▁well ▁as ▁multiple ▁special ▁collections ▁and ▁arch ives . ▁ ▁Middle ▁A ges ▁▁ ▁The ▁institution ▁has ▁its ▁origin ▁in ▁the ▁imperial ▁library ▁of ▁the ▁Middle ▁A ges . ▁During ▁the ▁Med ieval ▁period , ▁the ▁Aust rian ▁Duke ▁Albert ▁III ▁( 1 3 4 9 – 1 3 9 5 ) ▁moved ▁the ▁books ▁of ▁the ▁V ienn ese ▁v ault s ▁into ▁a ▁library . ▁Albert ▁also ▁arranged ▁for ▁important ▁works ▁from ▁Latin ▁to ▁be ▁translated ▁into ▁German . ▁In ▁the ▁Hof burg , ▁the ▁tre asure ▁of ▁Arch du ke ▁Albert ▁III ▁had ▁been ▁kept ▁in ▁sac rist ies ▁inside ▁the ▁south ▁tower ▁of ▁the ▁imperial ▁chap el . ▁The ▁Arch du ke ▁was ▁a ▁con no isseur ▁of ▁art ; ▁he ▁supported ▁the ▁University ▁of ▁Vienna , ▁and ▁he ▁founded ▁a ▁royal ▁work shop ▁for ▁illustr ating ▁manuscript s . ▁The ▁oldest ▁book ▁on ▁record ▁at ▁the ▁library , ▁the ▁ 1 3 6 8 ▁golden ▁Holy ▁G osp els , ▁was ▁owned ▁by ▁Albert ▁III ; ▁in ▁ 1 3 6 8 , ▁Johannes ▁of ▁Tro pp au , ▁priest ▁at ▁Land sk ron ▁and ▁canon ▁in ▁Br no , ▁trans cribed ▁the ▁four ▁G osp els ▁of ▁the ▁Bible ▁in ▁gold ▁letters ▁with ▁detailed ▁illustr ations ▁in ▁the ▁school ▁of ▁Burg und ian ▁book ▁art . ▁On ▁scenes ▁dep ict ing ▁the ▁lives ▁of ▁the