Lord of Lord Harroway's Town|
Master of coin
Fire & Blood (mentioned)|
The Sons of the Dragon (mentioned)
After Maegor exterminated House Harroway in 44 AC, he divided up the Harroway holdings among his remaining supporters. He granted Harrenhal to House Towers, but gave rule over Lord Harroway's Town to Lord Alton and the rest of the Harroway holdings to Lord Darnold Darry.
King Maegor's wars were ruinously expensive, exhausting the royal treasury. As Master of Coin, Lord Alton continuously raised taxes and imposed new ones, but these measures failed to bring in sufficient revenue. Maegor than demanded a tribute of gold from the high lords. These measures only made Maegor more loathed than he already was. 
The execution of Alys Harroway, and soon Tyanna of the Tower as well, left Maegor in need of new brides, as he had so far failed to produce an heir. Alton suggested his widowed stout sister as a match, who while no great beauty had given birth to seven children so her fertility was beyond doubt. Maegor was scornful of Alton's offer, but with Alton's remark upon fertility in mind, the three Black Brides wed by the king in 47 AC were proven to be fertile.