Dartagnan sits next to 3 phonetic neighbors — Tarquin, Damian, and Alistair are the closest matches by sound. Most share Dartagnan's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from Artagnan, a village in Gascony, France"
"to heal, healer"
"all-wise"
"rejoicing in the way"
"lake colony, settlement by the pool"
"Lord, master"
"my people"
"rye clearing"
"Saxon's settlement, Saxon town"
"cheerful homestead"
"one who covers"
"from Thracia"
"fair, white"
"army man, soldier"
"olive tree"
"hay valley"
"vigorous, powerful"
"meadow clearing"
"crowned with laurel, victorious"
"modern coinage, no historical meaning"
"distinguished ruler"
Similar sound: These names share phonetic patterns with Dartagnan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have French origins, giving them the same cultural heritage as Dartagnan.
Rhythm: Dartagnan is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.