Picorat That's fine, I did a bunch of Screen Grabs when I was ripping sprites, and they're just sitting around collecting digital dust.
You're right that Langrisser I direct references are pretty slim, its referenced at the end of Great Dragon in the cave level and of course, Boser popping up. I've wondered if a Great Dragon itself was a throwback to the two dragons at the end of Crest of Gaia. I do think the various units are I's biggest reference to the series like the fact that Heroic Grand Knights (Grand Dinos) are orange while Evil ones are white (Horn Dino) are from Elthlead, I think the Krakens are also a nice reference.
It's a shame Langrisser never gave us the Turtle Knights or AquaKnights 😀
Doesn't the first game, at least for MD make it out more like Ledin and co are descended from Elthlead than per say Baldea being Elthlead itself? Maybe I'm remembering wrong.
II certainly had more, especially with referencing Reitel, Rall, and other place/people names from Elthlead and of course Der summoning Sieghart. I always hated that III basically threw out all that the First Trilogy had to offer.
The book certainly does add a bit of background information. I miss that instruction manuals used to do that. I always prefer reading lore stuff outside of the game.
D has a listing of the Bösers and Sieghart Kings, they're on the wiki, but the Elthlead lineage is a bit hard to find so I'm just going to pop it up here. If I remember correctly he assumed they had for whatever reason saw Sieg as a throne name, and so figured they meant to do the whole thing? It fits Langrisser III well enough I suppose with Raymond taking a throne name.
Sieg Herman / Herman (Sieghart I) ジークヘルマン
Sieg Krich / Krich (Sieghart II) ジークリッヒ
Sieg Vogel / Vogel (Sieghart III) ジークフォーゲル
Sieghart / Hart (Sieghart IV) ジークハルト
Sieg Schwarz / Schwarz (Sieghart V) ジークシュハルツェ
Sieg Joachim / Joachim (Sieghart VI) ジークヨアヒム
Sieg Kaiser / Kaiser (Sieghart VII) ジーク・カイザー
Sieg Stallman / Stallmanジークシュタルマン (That is Elvin Lambert エルビン・ランバート)
There's also the random Sieghart Kaibert in Guyframe ジーク・カイベルト (Guyframe does separate the Sieg part in all names that appear in that game, specifically, Stallmann, Kaiser, Kaibert, and Herman )
It looks like he missed one though or least I don't see it referenced anywhere. ジークヘルツェ Sieghart III, a quick google search popped up Herze, which sounds good to me, but I dunno I'm sure you could figure that out better.
Stromann (Founder of Line) シュトルマン
Nalianth (Brother of Wehlmann) ナルヒアンス In an earlier forum post he had Nalhians
Wehlmann (Böser I) ウェルヒマン・ボーゼル In an earlier forum post he had Welchman
Verheim (Böser II) ヴェルハイム・ボーゼル In an earlier forum post he had Willheim
Yolen (Böser III) ヨーレン・ボーゼル
Görtz (Böser IV) ゲルツ・ボーゼル
Gwenalich (Böser V) グエナリッチ To Veldman ヴェルツマン・ボーゼル
Varlin (Basically Jessica) バーリン
Bernalich (Basically, Evil Jessica) ベルナリッヒ