Final answer:
Albino Luciani took the name Pope John Paul I upon his election in 1978. His papacy was notably short, as he passed away 33 days later. The period started by the threefold papal appointment in 1378 is known as the Western Schism.
Step-by-step explanation:
Albino Luciani was elected Pope in the year 1978, and he chose the papal name Pope John Paul I. Unfortunately, his papacy was very brief as he died unexpectedly only 33 days after his election. He was the predecessor of Pope John Paul II. Pope John Paul I is remembered for his humility and devotion during his short tenure as the leader of the Roman Catholic Church.
The period in the history of the Catholic Church that began with the simultaneous appointment of three popes in 1378 is known as the Western Schism or the Great Schism. This schism lasted for nearly 40 years and ended with the Council of Constance in 1417 which resolved the conflict by electing Pope Martin V.