When the Sith were revealed to have returned during the Invasion of Naboo in 32 BBY, Master Sifo-Dyas secretly commissioned the creation of a clone army, placing an order with the Kaminoan government before he was murdered by his friend, Count Dooku.
Which Jedi ordered the creation of the clones?
Jedi Master Sifo-Dyas Clone troopers were grown on the planet Kamino from the genetic template of bounty hunter Jango Fett, and made into a highly-efficient military force. The origin of their creation was murky; Prime Minister Lama Su told Obi-Wan Kenobi that the order was placed by Jedi Master Sifo-Dyas in the name of the Republic.
Who was Master Sifo-Dyas apprentice?
Count Dooku He ordered his apprentice, Count Dooku, to kill Sifo-Dyas. After doing so, Dooku covered his tracks by erasing Kamino and several other planets from the Jedi Archives. He then used his noble familys wealth to pay for the clone army and recruited the bounty hunter Jango Fett to be its template.