We don't have synonyms for louis xiii yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are louis xii, louis viii and louis xviii.
(N) :
(sometimes called the Just; 27 September 1601 – 14 May 1643) King of France from 1610 until his death in 1643 and King of Navarre (as Louis II) from 1610 to 1620, when the crown of Navarre was merged with the French crown.
(N) :
a cognac produced by Rémy Martin, a company headquartered in Cognac, France, and owned by the Rémy Cointreau Group.
(N) :
(sometimes called the Just; 27 September 1601 – 14 May 1643) King of France from 1610 until his death in 1643 and King of Navarre (as Louis II) from 1610 to 1620, when the crown of Navarre was merged with the French crown.
(N) :
a cognac produced by Rémy Martin, a company headquartered in Cognac, France, and owned by the Rémy Cointreau Group.