Frodo is introduced in The Fellowship of the Ring as the adoptive heir of Bilbo Baggins. The chapter “A Long-expected Party” relates that Frodo’s parents Drogo Baggins and Primula Brandybuck , Frodo subsequently spent the next nine years living with his maternal family, the Brandybucks in Brandy Hall. At the age of 21 he was adopted by his cousin, Bilbo, who brought him to live at Bag End. He and Bilbo shared the same birthday, the 22nd of September. It was Bilbo who introduced the Elvish languages to Frodo, and they often shared long walking trips together. (Sources : Frodo Baggins)
Frodo’s room was the first house built at House of Hobbit, the house was a relic of the owner’s Parent, and that was the first house of the parents owner , since in 1945 , after the house is not used anymore , the owner of the House of Hobbit redecorating all the buildings without leaving the impression of the old model,and it combine with a modern touch .