lineage; pedigree; family line
彼女は名門の家筋に生まれた。
She was born into a prestigious family line.
家筋を辿ると江戸時代に遡る。
Tracing the family line goes back to the Edo period.
家筋の良さで知られた一族だった。
It was a clan known for its distinguished pedigree.