Game Of Thrones Series
House Tyrell of Highgarden is an extinct Great House of Westeros. It ruled over the Reach, a vast, fertile, and heavily-populated region of southwestern Westeros, from their castle-seat, Highgarden. The House was formerly led by Lord Mace Tyrell. Mace's son Loras was a noted tournament knight (and, secretly, the lover of Lord Renly Baratheon). Mace's daughter Margaery married Renly when he crowned himself king, to cement the alliance between Renly and her father. Following Renly's death, Margaery was then married to King Joffrey Baratheon before his assassination at his wedding feast. She was then married to his younger brother, King Tommen Baratheon. Mace's mother, the indomitable Olenna Tyrell assumed House Tyrell's lordship after Margaery Tyrell, Loras Tyrell, and Mace Tyrell were all killed by wildfire during the destruction of the Great Sept of Baelor. Under Lady Olenna, House Tyrell had aligned itself with House Targaryen in opposition against Queen Cersei I for orchestrating the demise of most of the main branch of the Tyrell family. With the death of Lady Olenna after the Sack of Highgarden, the House has officially become extinct.
The Tyrell sigil is a golden rose on a pale green field. Their house words are "Growing Strong."