Five Sambhogakaya Buddhas
Skt., pancabuddha Tib., sangs rgyas lnga: Five Purified and Awakened Ones;
According to the Bardo Thödol, these five Dhyani Buddhas appear, one per day and in union with the corresponding Wisdom Dakinis, during the first five days of the bardo:
Vairocana (Tib., Nampar Nangdza; rNam-par sNang-mDzad) center Akshobhya (Tib., Mikyopa; Mi-bsKyod-pa) east Ratnasambhava (Tib., Rinchenjungdan; Rin-chen-hByung-lDan) south Amitabha (Tib., Opame; hOd-dpag-med) west Amoghasiddhi (Tib., Donjodubpa; Don-yod-Grub-pa) north
In the drawing, the central blue plane represents the sambhogakaya realm, indicating the five directions in which the above Buddhas manifest as visionary beings representing the all-encompassing Adibuddha (here symbolized by the three-dimensional sphere).
Each of these Buddhas represents one of the five families and each also has a so-called 'spiritual son' (or two): Bodhisattvas who represent the active energy of the respective Sambhogakaya Buddha by way of their (Nirmanakaya) manifestations and incarnations.
Note: There are other collective Sanskrit names in use for these five deities: tathagathas and jinas. Also, there are other systems of organization - mostly with Vairocana changing positions (center/east) with Akshobhya.