Feuding princes William and Harry have joined forces in a rare show of unity in memory of a friend.
The brothers penned a joint letter for a carol concert in memory of pal Henry van Straubenzee, praising his parents for their charity work.
The letter - signed by both princes - paid tribute to "Henners" and praised the "extraordinary" achievements of the Henry van Straubenzee Memorial Fund, which was set up in 2009.
