|Title||Lord of the Golden Tooth|
|Died||In 299 AC, at the Red Fork of the Trident|
A Game of Thrones (appears)|
A Clash of Kings (mentioned)
A Storm of Swords (appendix)
He is a sour man.
A Game of Thrones
When Tyrion Lannister is taken captive by Lady Catelyn Stark, Lord Tywin calls his banners and raids the Riverlands. Leo joins his liege lord in the campaign. He is given charge of Lord Tywin's stores and supplies.
When Tyrion joins with the Lannister camp on the east bank of the Trident, Leo provides him with a tent and is charged with supplying weapons to the mountain clans Tyrion has recruited to join the army. He reluctantly hands over his arms to what he calls savages, being particularly displeased when Shagga demands two axes. He later rides in the center of the Lannister force during the battle of the Green Fork.
When a messenger arrives with news of the defeat of Ser Jaime Lannister's forces in the battle of the Camps, Lord Leo suggests forming a truce and exchanging prisoners with the Stark army, pointing out that Queen Cersei has Sansa and Arya Stark in her hands. When Ser Addam Marbrand says that Robb Stark would be foolish to accept exchanging his sisters for Jaime, Leo then suggests ransoming Jaime.