Where does “Louisbourg” come from?

Louisbourg derives from French Louisbourg, named after French Louis, combining French Louis with Frankish burg meaning "fortified town," from Proto-Germanic burgz and ultimately Proto-Indo-European bʰrgʰ-.

Ancestry of “Louisbourg”, step by step

StepLanguageWordMeaning
1FrenchLouisbourg—
2FrenchlouisA louis: various gold and silver coins issued by...
3Middle FrenchLoïs—
4Old FrenchLooïs—
5LatinLudovīcus—
6Old High GermanHlūtwīg—
7Proto-West GermanicHlūdawīgmeaning famous in battle
8Proto-West Germanichlūdloud; sound
9Proto-Germanichlūdazloud; famous
10Proto-Indo-Europeanḱlewtosheard, famous
11Proto-Indo-Europeanḱlew-to hear
12Proto-Indo-Europeanḱel-to cover; to incline
Every word from Proto-Indo-European ḱel- →Every word from Proto-Indo-European ḱlew- →Every word from Proto-Indo-European ḱlewtos →