chitpas, also known under her nickname "tant" (), was born in bangkok as the eldest daughter of an aristocratic family. her father chutinant bhirombhakdi is one of the heirs to the boon rawd brewery fortune and executive vice-president of the singha corporation, producing the beer brands singha and leo. her grandfather chamnong bhirombhakdi was the president of singha corporation and was listed as number seven of the richest thais by "forbes" in 2011 with an estimated net worth of us$2 billion. therefore, she is often referred to as the "singha heiress" or "beer heiress" in thai press. chitpas' mother, "mom luang" piyapas bhirombhakdi née kridakorn, is a distant member of the thai royal family (great-great-granddaughter of king mongkut) and actress, primarily known for her portrayal of queen suriyothai in the 2001 history film "the legend of suriyothai". in 2017, the asian edition of "tatler" magazine chose chitpas as number two of "thailand's most eligible ladies".