The Saint's Cradle
The Saint's Cradle in the sky over Mid-Childa in StrikerS
Spaceship
Other names	The Cradle
Captain	The Saint Kings (ancient) Vivio, Quattro (modern)
Allegiance	Ancient Belkan Empire Jail Scaglietti
Production
Japanese name	聖王のゆりかご (Seiō no Yurikago)
First app.	StrikerS (ep.19)
Last app.	StrikerS (ep.26)

The Saint's Cradle (聖王のゆりかご Seiō no Yurikago, lit. "Cradle of the Saint Kings") is a Belkan battleship armed with mass-based weaponry. Measuring several kilometers, it was considered a royal treasure of the Saint King Family in the Ancient Belka. During the age of Ancient Belka, it was simply known as the "warship", however, among the members of the royal family it was called the "Cradle" since it was normal for them to be born, raised and finally die inside of it. It has been said that it was responsible for the large-scale dimensional dislocation that happened in the year 462 of the Old Calendar, mentioned by Yuuno Scrya in the episode 8 of the first season, which resulted in the destruction of the Belkan homeworld along with many others nearby it. It was continuously searched for by historians, theologians and archaeologists, but it remained missing until the events told in StrikerS, when was first classified as a highly dangerous Lost Logia. In episode 21, Yuuno's research about it revealed that it was already considered a Lost Logia during the time of Ancient Belka and that its origins could be traced back to Al-Hazard, although details were scarce. For its activation, a member of the Saint King's bloodline is necessary, which was made possible during StrikerS due to the presence of Vivio Takamachi, an artificial human being created with using the Saint King's genetic information.

The inside of the battleship is covered with a high-density AMF but, because magic is an abundant and highly efficient power source for its activities in Mid-Childa, it was not nullified completely at first. In the ancient times, the Belkan Knights and the crew of the Cradle received training to act under AMF conditions so to increase their efficiency when protecting the ship from intruding mages. It is said that if positioned so it could receive energy support from the two moons of Mid-Childa, the Cradle's defensive capacities greatly improve, becoming capable of magical bombardment, precision snipping, ship-to-surface strikes and dimensional-crossing attacks. Furthermore, it is perfectly capable of fighting both within the atmosphere, outer-space and within the dimensional sea. Among the the weapons available for the Cradle's magic-using soldiers, worth of note are the half-globes made of a glass-like substance that are spread along its hull and are actually an anti-aircraft gunport laser. The Cradle possess a total of 56 of these: 42 in the lower part of the hull (21 in each side) and 14 in the upper part. However, they are concentrated mostly in the front, leaving a blind spot in the rear bottom of the ship. In StrikerS, the Gadget Drones were mainly protecting this blind spot during the climax of the story. The Cradle's interior are extremely wide, to the point that aerial combat becomes possible, and can easily comport an army Type IV Gadget Drones. Note that these Type IV are not Scaglietti's work, but were part of the Cradle's equipment since the beginning and played a very important role in the defense of the ship during the ancient times.

Most of the ship's important internal facilities are located in the rear, near the bow between the the Throne Room and the Engine Drive. The engine is a big, red crystal which, once attacked, will be protected by an automatic defensive that will begin to retaliate indiscriminately. The purpose of the chambers where Quattro positioned herself are unknown, but is believed to be a sort of control room, since she was able to control the Cradle's actions from there.

Jail Scaglietti and his Numbers tried to hold Mid-Childa hostage with the Cradle's power, but they were defeated and the ship was later destroyed by Chrono Harlaown's fleet in episode 26 of StrikerS. It also appears in flashbacks in StrikerS manga.