Because Anthony had no male heirs, on his death the title went to nephew Nathan Mayer Rothschild who was subsequently elevated to the House of Lords and created Baron Rothschild in 1885 with which title the baronetcy remains merged.
The title went to nephew Nathan Mayer Rothschild. This Nathan Mayer Rothschild was subsequently elevated to the House of Lords. This Nathan Mayer Rothschild was subsequently created Baron Rothschild in 1885 with which title the baronetcy remains merged. Anthony had no male heirs. This was on his death.