The Vatican would not name two who are missing.

Preparations for the conclave to find a new pope accelerated Friday with the installation of the chimney out of the Sistine Chapel that will signal the election of a successor to Pope Francis.

The conclave that begins next Wednesday to elect a successor for Pope Francis is the first in 46 ½ years for which the Vatican hasn’t ordered a set of cassocks from the two best-known papal tailors.

Cardinals Rosa and Sako said they expect the conclave to be brief and last two to three days. While not revealing a name, Cardinal Sako said he already had a “very clear” idea of who he intended to vote for.

All 135 cardinals who are under the age of 80 and have not renounced the right to enter the conclave will have full voting rights.

In an April 29 statement, the Vatican said “the oath of the officials and attendants of the conclave will take place” May 5 in the Pauline Chapel, not far from the Sistine Chapel where the cardinals will vote for the next pope.