There are two Dido class ships damaged by bombs according to the links - HMS Dido on May 29, 1941 and HMS Sirius on October 7, 1943. Hmmm...
Of course Germans could misidentify the ship class too.
But according to this site http://www.naval-history.net/xGM-Chrono-06CL-Sirius.htm
HMS Sirius was hit with a 250 kg bomb on October 17, 1943:
Deployed in Aegean with HM Destroyers PATHFINDER, ECLIPSE and BEAUFORT. Reinforced HMS AURORA and destroyers in support of military operations. Bombarded Cos harbour with HMS AURORA. Under heavy and sustained air attack. Hit by 250 Kg bomb on quarterdeck and further 4 near misses causing fires aft.Major damage to armament and radar aerials from splinters. 14 of ship's company were killed and 30 wounded. Returned to Alexandria.
And then we have HMS Dido on May 29, 1941 (http://www.naval-history.net/xGM-Chrono-06CL-Dido.htm
Embarked troops from destroyers. Sustained direct hit on B-turret during passage of Kaso Strait. Many casualties including soldiers of The Black Watch. Extensive structural damage made forward armament unusable.
It does not look very much like a 1000 kg rocket assisted bomb hit.