These
names were used by medieval Welsh peoples.
Brochfael m Medieval WelshFrom Old Welsh
Brochmail, from a Brythonic name *
Broccomaglos, derived from Celtic *
brokkos "badger" and *
maglos "chief". This was the name of a 6th-century king of Powys, also known as
Brochwel.
Maelgwn m Medieval WelshFrom Old Welsh
Mailcun, from a Brythonic name *
Maglocunos meaning
"chief of hounds", derived from Celtic *
maglos "chief" and *
kū "dog, hound" (genitive *
kunos). This was the name of several early Welsh rulers, notably Maelgwn Gwynedd, a 6th-century king of Gwynedd.
Tangwystl f Medieval WelshFrom Welsh
tanc "peace" and
gwystl "hostage, pledge". This name was borne by a mistress of the 13th-century Welsh ruler
Llywelyn the Great.
Trahaearn m Medieval WelshMeans
"very much like iron", derived from Welsh
tra "very, over" prefixed to
haearn "iron". This name was borne by an 11th-century king of Gwynedd.