Kevan Lannister
Kevan Lannister, the younger brother of Lord Tywin Lannister, is the Lord Regent and Protector of the Realm for his great-nephew, the boy king Tommen Baratheon. A capable and pragmatic administrator, he steps into the power vacuum left by Tywin's murder and Cersei's catastrophic regency, working tirelessly to stabilize a realm fractured by war, rebellion, and religious upheaval. His brief tenure is defined by a series of calculated political compromises aimed at shoring up Lannister power, but his efforts are brutally cut short in the novel's epilogue when he is assassinated by the eunuch Varys, a murder designed to plunge the Seven Kingdoms back into chaos and clear the path for the return of a Targaryen claimant.
Rise to Power and Regency
Kevan Lannister assumes the regency after his niece Cersei's imprisonment and public humiliation by the Faith of the Seven. He is a stark contrast to Cersei's volatile rule; where she sowed discord, he seeks reconciliation. His primary goal is to bind the wounds of the realm by forging a stable alliance between House Lannister and House Tyrell, the two pillars of Tommen's regime. He grants Mace Tyrell the office of Hand of the King, a position the Tyrell lord had long coveted, and works alongside him on the small council. Kevan is acutely aware of the precariousness of their position, noting that the council is balanced between Lannister and Tyrell loyalists and that he is outnumbered. He also moves to neutralize Cersei as a political threat, arranging for her to be sent back to Casterly Rock after her trial by battle, ensuring she will have no further voice in the governance of the realm.
Political Calculations and Threats
Kevan's regency is beset by multiple crises. He must contend with the growing threat of the Golden Company, which has landed in the south under the command of Jon Connington, a former Hand of the King to Aerys II, and is rumored to be supporting a Targaryen pretender. He also faces the financial ruin of the crown, as the Iron Bank of Braavos demands repayment of King Robert's debts, a situation exacerbated by Cersei's refusal to pay. Kevan is forced to consider sending his good-father, Ser Harys Swyft, to Braavos to negotiate, a prospect that fills Swyft with dread. He is also wary of the Dornish, suspecting that Prince Doran Martell may join forces with Connington. Despite these pressures, Kevan manages to maintain a fragile peace, even persuading the High Septon to proceed with Cersei's trial by battle, for which her champion, the mysterious Ser Robert Strong, is prepared.
Assassination and Legacy
Kevan's work is undone in the novel's final chapter. After a meeting of the small council, he visits the Grand Maester Pycelle's chambers, only to be shot in the chest with a crossbow bolt by Varys, who has been in hiding. As Kevan lies dying, Varys reveals the true purpose of the murder: Kevan was proving too competent a regent, threatening to undo the chaos that Varys and his allies have cultivated. By killing Kevan and Pycelle, Varys intends to frame the Tyrells, deepen the mistrust between the great houses, and leave the realm in disarray, ripe for the arrival of Aegon Targaryen, whom Varys has been grooming for rule. Kevan's final thoughts are of his wife, Dorna, and his children, a poignant end for a man who, despite his loyalty to a flawed cause, acted with a sense of duty and honor that was rare in King's Landing. His death marks the final collapse of any hope for a stable Lannister rule and signals the beginning of a new, more chaotic phase in the War of the Five Kings.

