MARRIED. William Colby, 64, often embattled director of the Central Intelligence Agency under Presidents Nixon and Ford; and Sally Shelton, 40, former U.S. envoy to the West Indian islands of Barbados, Grenada, Dominica, St. Lucia and St. Vincent; both for the second time; in a ceremony performed by the mayor of Venice, Italy.

SEPARATED. Marie Osmond, 25, wholesome prima donna of the devoutly Mormon Osmond family; and her husband of 2 1/2 years, Stephen L. Craig, 27, a former Brigham Young University Basketball Player; in Los Angeles. The couple have a 19-month-old son, who has returned to Orem, Utah, with his mother.

SENTENCED. Mark Gastineau, 28, 6-ft. 5-in.. 270-lb. all-pro defensive end of the New York Jets, who was convicted in September of assaulting a man in New York City's Studio 54 nightclub; to 90 hours of community service conducting a football camp at Riker's Island correctional facility for jailed adolescents awaiting trial. Said presiding Criminal Court Judge Alan Marrus: "I'm sentencing you to Riker's Island--not as an inmate but as a teacher."

HOSPITALIZED. Martha Layne Collins, 47, Governor of Kentucky; to remove a 1.2-in. by 0.2-in. sliver of glass that had lodged in her small intestine; in a private clinic; in London. Collins was in the British capital with other members of the National Governors' Association on the first leg of a ten-day European trip to study the effects of acid rain; her husband suggested that the glass she swallowed may have been in a meal she ate while aboard a Pan American World Airways jet en route to England. Pan Am said that it strongly doubted that this could have happened. She is in good condition but is expected to remain at the clinic for two weeks.

HOSPITALIZED. Engelbert Humperdinck, 48, British crooner (Release Me, After the Lovin'); for severe fatigue and bronchitis after he collapsed in his dressing room during a six-day engagement at the Westbury (N.Y.) Music Fair; at Massapequa General Hospital, in North Massapequa, N.Y. He was released the following day.

DIED. Leonard Rose, 66, world-renowned cellist, admired for the technical mastery and elegance of his performances in solo work and chamber groups; of leukemia; in White Plains, N.Y. Rose was a brilliant, dedicated teacher whose students included the virtuosos Yo-Yo Ma and Lynn Harrell and many cellists in America's top symphony orchestras.

DIED. Trygve Bratteli, 74, shoemaker's son who twice became Prime Minister of Norway; of a stroke; in Oslo. Known as the Norwegian Sphinx for his quiet authority, Bratteli organized his country's underground resistance to the Nazis in 1940; after his capture two years later, he survived six concentration camps. To a political opponent, the slight, ascetic Bratteli was "one of a dying race of social democrats who came from a poor background and made his way through the hard sweat of his own labor."

DIED. George Aiken, 92, Republican veteran of the U.S. Senate for 34 years, and Governor of Vermont (1937-1941), who after five decades in politics still referred to himself as a New England land farmer; in Montpelier, Vt. A blunt-spoken maverick whose liberal views often nettled his party, Aiken led efforts to bring electricity to rural America, to build the St. Lawrence Seaway and to create the nationwide food-stamp program. His campaigns were noted for their thrift. Expenses often totaled less than $20--for stamps to send "thank you" letters to people who had, unasked, circulated his reelection petitions. Aiken became famous for suggesting in 1966 that the solution to the Viet Nam War was for President Johnson simply to declare the U.S. the winner and then retreat.