Although

Subordinating conjunction

  they

Pronoun

  did

Auxiliary

  order

Verb

  two

Numeral

  paintings

Noun

  of

Adposition

 " The

Determiner

 Morosini  Banner

Proper noun

".

Although they did order two paintings of "The Morosini Banner".

Although they did order two paintings of "The Morosini Banner".