HL is one of the oddest consonant clusters to start any name or word with; hlots of us hlive with it.
Hlots More

There's always some thing even more odd than the HL
thing.

No HL -- No Vowels

The Czech Language
      Can I buy a vowel?
      There are three main Language Families in Europe:
Romantic, Germanic and Slavic. French, Spanish, Italian
and Portuguese are members of the Romantic language
family, with Latin as their mother. Czech belongs to the
Slavic language family.  The languages of Slovakia,
Poland, Russia, Ukraine, Bulgaria, Slovenia, Croatia and
Serbia are also in the Slavic family.  Their mother is known
as Old Slavonic, which is used only in some churches
today, much like Latin is used in the Catholic Church.          

      Czech is written in the Latin alphabet, which English
uses, with only a few additional letters. Some Slavic
languages are written in the Cyrillic Alphabet, with Russian
being the best known example.  Czech, however, has
some very interesting quirks. The Guiness World Book of
Records says that Czech uses fewer vowels than any other
language on earth, (Hawaiian uses the most
vowels.)            

      Here is list of words in Czech that have no vowels at
all, with their English meanings:           

C'tvrt – quarter
Drn – turf  
Hrb – hump  
Hrst – handful  
Chrt – greyhound dog  
Krb – fireplace  
Krk – neck  
Plst – felt (the cloth material)
Prs – breast  
Prst – finger  
Prs' – rain  
Skrz – through  
Skvrn – patch, spot  
Smrk – spruce tree  
Smrst – tornado  
Smrt – death  
Srp – sickle  
Srst – fur  
Srdc – heart  
Strz – ravine  
Trh – market  
Trn – thorn  
Vlk – wolf  
Vln – wool  
Vrh – putting (in golf)
Vrch – hill  
Vrt – bore, drill  
Zrn – corn  


And there are four prepositions that are just one letter.
They mean: with, on, at, in – depending on where they are
used
K
S
V
Z