Milestones: Apr. 25, 1969

Born. To Bill Cosby, 31, the low-keyed comic and TV actor (I Spy) who has made growing up in Philadelphia's black slums sound like an experience nobody should miss, and wife Camille: their third child, first son, Ennis William; in Los Angeles.

Born. To Crown Prince Akihito, 35, the first son of Japan's Emperor Hirohito, and Princess Michiko, 34, common-born daughter of a wealthy industrialist: their third child, first daughter; in Tokyo.

Married. Joey Heatherton, 24, nimble-limbed television performer and troop entertainer; and Lance Rentzel, 25, swivel-hipped flanker back for football's Dallas Cowboys and new co-owner of a Dallas night club; each for the first time; in New York City.

Married. Major General Yakubu Gowon, 34, Nigerian chief of state; and Victoria Zakari, a 22-year-old nurse; in an Anglican ceremony in Lagos. As a wedding offering for the bride and groom, Gowon's generals, recalling Sherman's Christmas present of Atlanta to President Lincoln, promised to capture Umuahia, the last major Bi-afran-held town.

Died. Dr. Emilio Arenales, 46, diplomat, lawyer, and since last September president of the United Nations General Assembly; of cancer; in Guatemala City, Guatemala. Arenales served as legal counselor to the preparatory commission for UNESCO at age 24, was his country's permanent U.N. representative from 1955 to 1958, became Guatemala's Foreign Minister in 1966 after eight years of private law practice. When he was elected to the one-year presidency of the General Assembly, he said happily: "Guatemala can expect to preside about once in 100 years. For any man who holds the office, it is the peak of his diplomatic career."

Died. Queen Victoria Eugenie Julia Ena, 81, widow of Spain's last king, Alfonso XIII, exiled with her husband in 1931 when the country was proclaimed a republic; after a long illness; in Ouchy, Switzerland. One of 40 grandchildren of Britain's Queen Victoria, the gentle Queen Ena suffered stoically through a life studded with sadness. In 1906, an anarchist's bomb thrown at her bridal coach killed a score of bystanders. One of her sons was deaf, two were hemophiliacs (they later died in automobile accidents). King Alfonso was a known philanderer and, after going into exile, she and her husband lived apart. Only once did Queen Ena return to Spain—last year, when she accepted the role of godmother to her great-grandson, Prince Felipe, newborn son of Juan Carlos and Princess Sophie.