Article (magazine)  (2023)  
 
Queen of Sweden^® 'Austiger', Source/Accession Biltmore Estate  ...Estimated ploidy level(x) 4

Website/Catalog  (2019)  Page(s) 54.  Includes photo(s).
 
Queen of Sweden AUStiger
Exquisite little buds open to half-enclosed cups, eventually becoming wide, shallow, upward-facing cups of pleasing formality. The colour begins as soft-apricot pink, gradually changing to pure soft pink over time. It has a lovely myrrh fragrance. It forms a bushy, yet upright shrub. Named to commemorate the Treaty of Friendship and Commerce between Sweden and Great Britain. David Austin, 2004.

Website/Catalog  (2018)  Includes photo(s).
 
(Austiger)  Queen of Sweden
Exquisite little buds open to half-enclosed cups, eventually becoming wide, shallow, upward-facing cups of pleasing formality.  The colour begins as soft-apricot pink, gradually changing to pure soft pink over time.  There is a light to medium myrrh fragrance. It forms a bushy, yet upright shrub.  David Austin, 2004. [...]
Named to commemorate the 350th anniversary of the Treaty of Friendship and Commerce between Queen Christina of Sweden and Oliver Cromwell of Great Britain in 1654.

Magazine  (Feb 2005)  Page(s) 38.  
 
Registration
'Austiger', S, lp, 2005, (Queen of Sweden), [undisclosed x Charlotte], Austin, David ... description

Edit: seed parent discribed as "medium pink English-type shrub"