When Thomas Chamberlain was born about 1390, in Shirburn, Oxfordshire, England, United Kingdom, his father, John Chamberlain, was 32 and his mother, Alice Bensted, was 31. He married Isabel Knyfton in 1415. They were the parents of at least 1 son. He died in his hometown.
English: status name from Old French chambrelain, Norman French cambrelanc, cambrelen(c) ‘chamberlain’ (of ancient Germanic origin, from kamer ‘chamber, room’, Latin camera (see Chambers ) + the diminutive suffix -(l)ing). This was originally the name of an official in charge of the private chambers of his master, but is so widespread in late medieval England that it must sometimes have been used of people of more ordinary status, perhaps as a nickname for an officious or self-important person or for someone who played the role of chamberlain in a folk play, tableau, or ceremony. Compare Chancellor for a possible similar usage.