Swedish

There are three titles for the two Swedish translations.  The older translation by Åke Ohlmarks was known as Härskarringen or Sagan om Ringen.  Sagan om Ringen was originally the title of just FR, but was later applied to the whole LOTR.  TT and RK were called Sagan om de Två Tornen and Sagan om Konungens Återkomst, respectively.  Tolkien disliked this translation.  It was superseded in 2005 by the translation of Erik Andersson called Ringarnas Herre, with the three parts called Ringens Brödskap, De Två Tornen, and Konungens Återkomst.

Härskarringen (Åke Ohlmarks' translation)

NOTE:  This history is based on the 17 editions in my collection--14 of the older Ohlmarks translation and three of the newer Andersson translation.  Thus, while the relative timeline is fairly accurate, I don't have a copy of every Swedish edition published and there may be differences from the actual timeline.  Any corrections based on volumes not in my collection will be welcome.

The name Härskarringen, did not appear in the very first volume, FR of Swedish J and Swedish P, which is called Sagan om Ringen.  (Swedish J and P were published at virtually the same time and contain the identical text.  Swedish J is a hardback edition and Swedish P is a paperback edition.)  Integral to the evolution of this name is the title of the Ring Poem.  The Ring Poem in these two editions of FR is called "Ringarnas Härskare".   The trilogy as a whole is not given a name.

A year later, the TT translation was published as Sagan om de Två Tornen.  In this edition, the Ring Poem is called "Ringarnas Ring" and in the Foreword called "Detta har hänt" (pg 17), the trilogy is first named Ringarnas Ring, although that term does not appear on the title page or the paperback's marketing text on the back cover.

In the following year, when the RK translation was published as Sagan om Konungens Återkomst,  the Ring Poem had again been retitled as "Härskarringen" and the trilogy was rechristened Härskarringen in the Foreword (pg 15) (although still not on the title page or the paperback's back cover).

In subsequent editions of the Ohlmarks translation, the internal text remains the same as in the initial edition, including the changing name of the Ring Poem from volume to volume.  The only exception is in TT.  In the 1970s the trilogy began to be called Härskarringen rather than Ringarnas Ring in the Foreward.  However, the text on the pages before the copyright and title pages and the marketing text on the back covers of paperback editions changes from edition to edition.  In 1969, the page before the copyright page simply labels the three volumes as "J.R.R. Tolkien's romantrilogi".  The back cover has no label for the trilogy, even on the third volume despite Härskarringen being the name given in the Foreword.  When the complete Appendices were published as a separate volume in 1972, however, the title on the front cover was Ringens värld, Dokument rörande sagorna om Härskarringen and the back cover lists the three volumes as "Sagorna om Härskarringen".  In the latest (2002) three-volume sets for Härskarringen in my collection, the name of the Ring Poem has been standardized in all three volumes to "Ringarnas Härskare".

The earliest one-volume edition in my collection (Swedish L, 1982) is labelled Trilogin om Härskarringen on both front and back covers and on the title page.  Since the text still replicates the original text, the Ring Poem is labelled "Ringarnas Härskare" as in the Sagan om Ringen and the only Foreword present has no reference to the Swedish trilogy.  (Since all the introductory materials in TT and RK were removed for the one-volume edition, the only copy of the Ring Poem and Foreword is from FR.)  From 1991 until the appearance of the new translation of Andersson in 2004, Härskarringen appears as the sole title or co-title of one-volume editions.

In December 2001 the Peter Jackson film "Fellowship of the Ring" arrived in Swedish theaters under the title "Sagan om Ringen - Härskarringen".  Two one-volume editions and two three-volume editions of Härskarringen were published in that year with the overall title Sagan om Ringen.  On the covers of the one-volume editions, the covers of one of the three-volume editions, and on the box of the other three-volume editions, the subtitle Härskarringen (or Trilogin om Häskarringen) appears in smaller print.  The title page of the two one-volume editions still emphasize Härskarringen in large print above the names of the three components.  But the only mention of Härskarringen on the three-volume editions is the subtitle of the front cover or box and in the text on the back cover.  It is not mentioned on the title pages.  The use of Sagan om Ringen as the title for the entire trilogy seems to be a direct effort to tie the books to the film, despite only one of the one-volume editions having cover art from the film.

These six volumes are called the Jubileumsupplaga ("Jubilee Edition") on the back covers.

Ringarnas Herre (Erik Andersson's translation)

The Ring Poem is printed without a title in the Ringarnas Herre editions of the Andersson translation.