communication of casareal regarding juan carlos travelling to Spain:
https://casareal.es/ES/AreaPrensa/Paginas/area_prensa_comunicados_interior.aspx?data=119
COMMUNIQUÉ OF THE HOUSE OF S.M. THE KING
His Majesty the King Don Juan Carlos has transferred this afternoon to the House of His Majesty the King his desire to make public his decision to move to Spain from tomorrow 19 until next Monday, May 23.
Don Juan Carlos plans to stay during those dates in the Galician town of Sanxenxo, and on Monday 23 travel to Madrid, to be with His Majesty the King, with His Majesty Queen Sofia and other members of his family at the Palacio de La Zarzuela. That same day, His Majesty King Juan Carlos will embark on a journey back to Abu Dhabi, where he has taken up permanent and stable residence.
This visit is part of the desire of His Majesty King Juan Carlos to travel frequently to Spain to visit family and friends, and to organize his personal life and his place of residence in private areas, as expressed in the letter he addressed to His Majesty the King on March 5.
Palacio de La Zarzuela, May 18, 2022
So he will only come to see the family for a day visit and not stay overnight.