Barbados

(1) There shall be a President who shall be the Head of State.
... (Sec. 28)

A person is qualified to be nominated for election as President if he is a citizen of Barbados by birth or descent. (Sec. 29)

(1) Whenever the office of President is vacant, or if the term of office of the President is due to expire within not more than ninety days, the Prime Minister shall consult with the Leader of the Opposition with a view to their joint nomination of a candidate for election as President.
(2) If the Prime Minister and the Leader of the Opposition make in writing to the Speaker a joint nomination of a qualified candidate for election as President, being a nomination to which that candidate has consented, the Speaker shall notify both Houses of the joint nomination and, at a joint meeting of both Houses, shall ask the members whether any member has an objection to the candidate being declared duly elected, if no member objects thereto, the Speaker shall declare the candidate duly elected.
(3) If there is an objection under subsection (2) the Speaker shall not declare the candidate duly elected but shall suspend the joint meeting.
(4) The members of each House shall, immediately following the suspension, resume in their respective House and the presiding officer of each House shall put the question referred to in subsection (2) to a vote.
(5) Immediately upon announcing the result of the vote in each House, the joint sitting shall resume and the President of the Senate and the Speaker shall each announce the result of the vote.
(6) If the candidate receives not less than two-thirds of the votes cast in each House, the Speaker shall then declare the candidate duly elected.
... (Sec. 32)

(1) The executive authority of Barbados is vested in the President.
(2) Subject to the provisions of this Constitution, the executive authority of Barbados may be exercised by the President either directly or through officers subordinate to him.
... (Sec. 63)