Sid and Mercedes Bass in 2009. (Andrew H. Walker/Getty Images)

• Divorcing: Society titans Sid and Mercedes Bass after 23 years of jet-setting marriage. The Texas oilman, 69, and the longtime Metropolitan Opera patron, 67, announced late last week that while they “continue to love each other and remain good friends,” they have nonethless “mutually agreed to end their marriage,” reports the Fort Worth Star-Telegram. This one could be expensive: Forbes recently ranked him as the 200th richest person in America, with a net worth of $2.1 billion. They married in 1988 after splitting from their high-profile original spouses in an affair that scandalized Manhattan (“Mercedes Hooks Her Bass” was a typical headline); Sid’s first divorce settlement was reported to be in the nine figures. The two were occasionally seen in Washington society, notably at the 2007 White House state dinner for Queen Elizabeth.